From a8f15b31a6479d077b851c86a2cc47391bccafb5 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Mon, 25 Mar 2024 08:27:00 +0100 Subject: ARM: 9355/2: Add TTBCR_* definitions to pgtable-3level-hwdef.h These macros will be used in a subsequent patch. At one point these were part of the ARM32 KVM but that is no longer the case. Since these macros are only relevant to LPAE kernel builds, they are added to pgtable-3level-hwdef.h Signed-off-by: Catalin Marinas Reviewed-by: Kees Cook Tested-by: Florian Fainelli Signed-off-by: Linus Walleij Signed-off-by: Russell King (Oracle) --- arch/arm/include/asm/pgtable-3level-hwdef.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'arch/arm') diff --git a/arch/arm/include/asm/pgtable-3level-hwdef.h b/arch/arm/include/asm/pgtable-3level-hwdef.h index 2f35b4eddaa8..19da7753a0b8 100644 --- a/arch/arm/include/asm/pgtable-3level-hwdef.h +++ b/arch/arm/include/asm/pgtable-3level-hwdef.h @@ -94,4 +94,21 @@ #define TTBR1_SIZE (((PAGE_OFFSET >> 30) - 1) << 16) +/* + * TTBCR register bits. + */ +#define TTBCR_EAE (1 << 31) +#define TTBCR_IMP (1 << 30) +#define TTBCR_SH1_MASK (3 << 28) +#define TTBCR_ORGN1_MASK (3 << 26) +#define TTBCR_IRGN1_MASK (3 << 24) +#define TTBCR_EPD1 (1 << 23) +#define TTBCR_A1 (1 << 22) +#define TTBCR_T1SZ_MASK (7 << 16) +#define TTBCR_SH0_MASK (3 << 12) +#define TTBCR_ORGN0_MASK (3 << 10) +#define TTBCR_IRGN0_MASK (3 << 8) +#define TTBCR_EPD0 (1 << 7) +#define TTBCR_T0SZ_MASK (7 << 0) + #endif -- cgit v1.2.3 From 66abdd3b5d4e53bc17c524493b404266e0af114e Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Mon, 25 Mar 2024 08:28:50 +0100 Subject: ARM: 9356/2: Move asm statements accessing TTBCR into C functions This patch implements cpu_get_ttbcr() and cpu_set_ttbcr() and replaces the corresponding asm statements. Signed-off-by: Catalin Marinas Reviewed-by: Kees Cook Tested-by: Florian Fainelli Signed-off-by: Linus Walleij Signed-off-by: Russell King (Oracle) --- arch/arm/include/asm/proc-fns.h | 12 ++++++++++++ arch/arm/mm/mmu.c | 7 +++---- 2 files changed, 15 insertions(+), 4 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/include/asm/proc-fns.h b/arch/arm/include/asm/proc-fns.h index 280396483f5d..9b3105a2a5e0 100644 --- a/arch/arm/include/asm/proc-fns.h +++ b/arch/arm/include/asm/proc-fns.h @@ -178,6 +178,18 @@ extern void cpu_resume(void); }) #endif +static inline unsigned int cpu_get_ttbcr(void) +{ + unsigned int ttbcr; + asm("mrc p15, 0, %0, c2, c0, 2" : "=r" (ttbcr)); + return ttbcr; +} + +static inline void cpu_set_ttbcr(unsigned int ttbcr) +{ + asm("mcr p15, 0, %0, c2, c0, 2" : : "r" (ttbcr)); +} + #else /*!CONFIG_MMU */ #define cpu_switch_mm(pgd,mm) { } diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c index c24e29c0b9a4..3f774856ca67 100644 --- a/arch/arm/mm/mmu.c +++ b/arch/arm/mm/mmu.c @@ -1687,9 +1687,8 @@ static void __init early_paging_init(const struct machine_desc *mdesc) */ cr = get_cr(); set_cr(cr & ~(CR_I | CR_C)); - asm("mrc p15, 0, %0, c2, c0, 2" : "=r" (ttbcr)); - asm volatile("mcr p15, 0, %0, c2, c0, 2" - : : "r" (ttbcr & ~(3 << 8 | 3 << 10))); + ttbcr = cpu_get_ttbcr(); + cpu_set_ttbcr(ttbcr & ~(3 << 8 | 3 << 10)); flush_cache_all(); /* @@ -1701,7 +1700,7 @@ static void __init early_paging_init(const struct machine_desc *mdesc) lpae_pgtables_remap(offset, pa_pgd); /* Re-enable the caches and cacheable TLB walks */ - asm volatile("mcr p15, 0, %0, c2, c0, 2" : : "r" (ttbcr)); + cpu_set_ttbcr(ttbcr); set_cr(cr); } -- cgit v1.2.3 From de7f60f0b03175ff056f18996d7e2577bc4baa65 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Mon, 25 Mar 2024 08:30:02 +0100 Subject: ARM: 9357/2: Reduce the number of #ifdef CONFIG_CPU_SW_DOMAIN_PAN This is a clean-up patch aimed at reducing the number of checks on CONFIG_CPU_SW_DOMAIN_PAN, together with some empty lines for better clarity once the CONFIG_CPU_TTBR0_PAN is introduced. Signed-off-by: Catalin Marinas Reviewed-by: Kees Cook Tested-by: Florian Fainelli Signed-off-by: Linus Walleij Signed-off-by: Russell King (Oracle) --- arch/arm/include/asm/uaccess-asm.h | 16 ++++++++++++---- arch/arm/include/asm/uaccess.h | 21 +++++++++++++++------ 2 files changed, 27 insertions(+), 10 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/include/asm/uaccess-asm.h b/arch/arm/include/asm/uaccess-asm.h index 65da32e1f1c1..ea42ba25920f 100644 --- a/arch/arm/include/asm/uaccess-asm.h +++ b/arch/arm/include/asm/uaccess-asm.h @@ -39,8 +39,9 @@ #endif .endm - .macro uaccess_disable, tmp, isb=1 #ifdef CONFIG_CPU_SW_DOMAIN_PAN + + .macro uaccess_disable, tmp, isb=1 /* * Whenever we re-enter userspace, the domains should always be * set appropriately. @@ -50,11 +51,9 @@ .if \isb instr_sync .endif -#endif .endm .macro uaccess_enable, tmp, isb=1 -#ifdef CONFIG_CPU_SW_DOMAIN_PAN /* * Whenever we re-enter userspace, the domains should always be * set appropriately. @@ -64,9 +63,18 @@ .if \isb instr_sync .endif -#endif .endm +#else + + .macro uaccess_disable, tmp, isb=1 + .endm + + .macro uaccess_enable, tmp, isb=1 + .endm + +#endif + #if defined(CONFIG_CPU_SW_DOMAIN_PAN) || defined(CONFIG_CPU_USE_DOMAINS) #define DACR(x...) x #else diff --git a/arch/arm/include/asm/uaccess.h b/arch/arm/include/asm/uaccess.h index 9556d04387f7..2278769f1156 100644 --- a/arch/arm/include/asm/uaccess.h +++ b/arch/arm/include/asm/uaccess.h @@ -24,9 +24,10 @@ * perform such accesses (eg, via list poison values) which could then * be exploited for priviledge escalation. */ +#ifdef CONFIG_CPU_SW_DOMAIN_PAN + static __always_inline unsigned int uaccess_save_and_enable(void) { -#ifdef CONFIG_CPU_SW_DOMAIN_PAN unsigned int old_domain = get_domain(); /* Set the current domain access to permit user accesses */ @@ -34,19 +35,27 @@ static __always_inline unsigned int uaccess_save_and_enable(void) domain_val(DOMAIN_USER, DOMAIN_CLIENT)); return old_domain; -#else - return 0; -#endif } static __always_inline void uaccess_restore(unsigned int flags) { -#ifdef CONFIG_CPU_SW_DOMAIN_PAN /* Restore the user access mask */ set_domain(flags); -#endif } +#else + +static inline unsigned int uaccess_save_and_enable(void) +{ + return 0; +} + +static inline void uaccess_restore(unsigned int flags) +{ +} + +#endif + /* * These two are intentionally not defined anywhere - if the kernel * code generates any references to them, that's a bug. -- cgit v1.2.3 From 7af5b901e84743c608aae90cb0e429702812c324 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Mon, 25 Mar 2024 08:31:13 +0100 Subject: ARM: 9358/2: Implement PAN for LPAE by TTBR0 page table walks disablement With LPAE enabled, privileged no-access cannot be enforced using CPU domains as such feature is not available. This patch implements PAN by disabling TTBR0 page table walks while in kernel mode. The ARM architecture allows page table walks to be split between TTBR0 and TTBR1. With LPAE enabled, the split is defined by a combination of TTBCR T0SZ and T1SZ bits. Currently, an LPAE-enabled kernel uses TTBR0 for user addresses and TTBR1 for kernel addresses with the VMSPLIT_2G and VMSPLIT_3G configurations. The main advantage for the 3:1 split is that TTBR1 is reduced to 2 levels, so potentially faster TLB refill (though usually the first level entries are already cached in the TLB). The PAN support on LPAE-enabled kernels uses TTBR0 when running in user space or in kernel space during user access routines (TTBCR T0SZ and T1SZ are both 0). When running user accesses are disabled in kernel mode, TTBR0 page table walks are disabled by setting TTBCR.EPD0. TTBR1 is used for kernel accesses (including loadable modules; anything covered by swapper_pg_dir) by reducing the TTBCR.T0SZ to the minimum (2^(32-7) = 32MB). To avoid user accesses potentially hitting stale TLB entries, the ASID is switched to 0 (reserved) by setting TTBCR.A1 and using the ASID value in TTBR1. The difference from a non-PAN kernel is that with the 3:1 memory split, TTBR1 always uses 3 levels of page tables. As part of the change we are using preprocessor elif definied() clauses so balance these clauses by converting relevant precedingt ifdef clauses to if defined() clauses. Signed-off-by: Catalin Marinas Reviewed-by: Kees Cook Tested-by: Florian Fainelli Signed-off-by: Linus Walleij Signed-off-by: Russell King (Oracle) --- arch/arm/Kconfig | 22 +++++++++++++-- arch/arm/include/asm/assembler.h | 1 + arch/arm/include/asm/pgtable-3level-hwdef.h | 9 ++++++ arch/arm/include/asm/ptrace.h | 1 + arch/arm/include/asm/uaccess-asm.h | 44 ++++++++++++++++++++++++++++- arch/arm/include/asm/uaccess.h | 26 ++++++++++++++++- arch/arm/kernel/asm-offsets.c | 1 + arch/arm/kernel/suspend.c | 8 ++++++ arch/arm/lib/csumpartialcopyuser.S | 20 ++++++++++++- arch/arm/mm/fault.c | 29 +++++++++++++++++++ 10 files changed, 155 insertions(+), 6 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index b14aed3a17ab..1394a8491210 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1233,9 +1233,9 @@ config HIGHPTE consumed by page tables. Setting this option will allow user-space 2nd level page tables to reside in high memory. -config CPU_SW_DOMAIN_PAN - bool "Enable use of CPU domains to implement privileged no-access" - depends on MMU && !ARM_LPAE +config ARM_PAN + bool "Enable privileged no-access" + depends on MMU default y help Increase kernel security by ensuring that normal kernel accesses @@ -1244,10 +1244,26 @@ config CPU_SW_DOMAIN_PAN by ensuring that magic values (such as LIST_POISON) will always fault when dereferenced. + The implementation uses CPU domains when !CONFIG_ARM_LPAE and + disabling of TTBR0 page table walks with CONFIG_ARM_LPAE. + +config CPU_SW_DOMAIN_PAN + def_bool y + depends on ARM_PAN && !ARM_LPAE + help + Enable use of CPU domains to implement privileged no-access. + CPUs with low-vector mappings use a best-efforts implementation. Their lower 1MB needs to remain accessible for the vectors, but the remainder of userspace will become appropriately inaccessible. +config CPU_TTBR0_PAN + def_bool y + depends on ARM_PAN && ARM_LPAE + help + Enable privileged no-access by disabling TTBR0 page table walks when + running in kernel mode. + config HW_PERF_EVENTS def_bool y depends on ARM_PMU diff --git a/arch/arm/include/asm/assembler.h b/arch/arm/include/asm/assembler.h index aebe2c8f6a68..d33c1e24e00b 100644 --- a/arch/arm/include/asm/assembler.h +++ b/arch/arm/include/asm/assembler.h @@ -21,6 +21,7 @@ #include #include #include +#include #include #include diff --git a/arch/arm/include/asm/pgtable-3level-hwdef.h b/arch/arm/include/asm/pgtable-3level-hwdef.h index 19da7753a0b8..323ad811732e 100644 --- a/arch/arm/include/asm/pgtable-3level-hwdef.h +++ b/arch/arm/include/asm/pgtable-3level-hwdef.h @@ -74,6 +74,7 @@ #define PHYS_MASK_SHIFT (40) #define PHYS_MASK ((1ULL << PHYS_MASK_SHIFT) - 1) +#ifndef CONFIG_CPU_TTBR0_PAN /* * TTBR0/TTBR1 split (PAGE_OFFSET): * 0x40000000: T0SZ = 2, T1SZ = 0 (not used) @@ -93,6 +94,14 @@ #endif #define TTBR1_SIZE (((PAGE_OFFSET >> 30) - 1) << 16) +#else +/* + * With CONFIG_CPU_TTBR0_PAN enabled, TTBR1 is only used during uaccess + * disabled regions when TTBR0 is disabled. + */ +#define TTBR1_OFFSET 0 /* pointing to swapper_pg_dir */ +#define TTBR1_SIZE 0 /* TTBR1 size controlled via TTBCR.T0SZ */ +#endif /* * TTBCR register bits. diff --git a/arch/arm/include/asm/ptrace.h b/arch/arm/include/asm/ptrace.h index 14a38cc67e0b..6eb311fb2da0 100644 --- a/arch/arm/include/asm/ptrace.h +++ b/arch/arm/include/asm/ptrace.h @@ -20,6 +20,7 @@ struct pt_regs { struct svc_pt_regs { struct pt_regs regs; u32 dacr; + u32 ttbcr; }; #define to_svc_pt_regs(r) container_of(r, struct svc_pt_regs, regs) diff --git a/arch/arm/include/asm/uaccess-asm.h b/arch/arm/include/asm/uaccess-asm.h index ea42ba25920f..4bccd895d954 100644 --- a/arch/arm/include/asm/uaccess-asm.h +++ b/arch/arm/include/asm/uaccess-asm.h @@ -39,7 +39,7 @@ #endif .endm -#ifdef CONFIG_CPU_SW_DOMAIN_PAN +#if defined(CONFIG_CPU_SW_DOMAIN_PAN) .macro uaccess_disable, tmp, isb=1 /* @@ -65,6 +65,37 @@ .endif .endm +#elif defined(CONFIG_CPU_TTBR0_PAN) + + .macro uaccess_disable, tmp, isb=1 + /* + * Disable TTBR0 page table walks (EDP0 = 1), use the reserved ASID + * from TTBR1 (A1 = 1) and enable TTBR1 page table walks for kernel + * addresses by reducing TTBR0 range to 32MB (T0SZ = 7). + */ + mrc p15, 0, \tmp, c2, c0, 2 @ read TTBCR + orr \tmp, \tmp, #TTBCR_EPD0 | TTBCR_T0SZ_MASK + orr \tmp, \tmp, #TTBCR_A1 + mcr p15, 0, \tmp, c2, c0, 2 @ write TTBCR + .if \isb + instr_sync + .endif + .endm + + .macro uaccess_enable, tmp, isb=1 + /* + * Enable TTBR0 page table walks (T0SZ = 0, EDP0 = 0) and ASID from + * TTBR0 (A1 = 0). + */ + mrc p15, 0, \tmp, c2, c0, 2 @ read TTBCR + bic \tmp, \tmp, #TTBCR_EPD0 | TTBCR_T0SZ_MASK + bic \tmp, \tmp, #TTBCR_A1 + mcr p15, 0, \tmp, c2, c0, 2 @ write TTBCR + .if \isb + instr_sync + .endif + .endm + #else .macro uaccess_disable, tmp, isb=1 @@ -79,6 +110,12 @@ #define DACR(x...) x #else #define DACR(x...) +#endif + +#ifdef CONFIG_CPU_TTBR0_PAN +#define PAN(x...) x +#else +#define PAN(x...) #endif /* @@ -94,6 +131,8 @@ .macro uaccess_entry, tsk, tmp0, tmp1, tmp2, disable DACR( mrc p15, 0, \tmp0, c3, c0, 0) DACR( str \tmp0, [sp, #SVC_DACR]) + PAN( mrc p15, 0, \tmp0, c2, c0, 2) + PAN( str \tmp0, [sp, #SVC_TTBCR]) .if \disable && IS_ENABLED(CONFIG_CPU_SW_DOMAIN_PAN) /* kernel=client, user=no access */ mov \tmp2, #DACR_UACCESS_DISABLE @@ -112,8 +151,11 @@ .macro uaccess_exit, tsk, tmp0, tmp1 DACR( ldr \tmp0, [sp, #SVC_DACR]) DACR( mcr p15, 0, \tmp0, c3, c0, 0) + PAN( ldr \tmp0, [sp, #SVC_TTBCR]) + PAN( mcr p15, 0, \tmp0, c2, c0, 2) .endm #undef DACR +#undef PAN #endif /* __ASM_UACCESS_ASM_H__ */ diff --git a/arch/arm/include/asm/uaccess.h b/arch/arm/include/asm/uaccess.h index 2278769f1156..25d21d7d6e3e 100644 --- a/arch/arm/include/asm/uaccess.h +++ b/arch/arm/include/asm/uaccess.h @@ -14,6 +14,8 @@ #include #include #include +#include +#include #include #include @@ -24,7 +26,7 @@ * perform such accesses (eg, via list poison values) which could then * be exploited for priviledge escalation. */ -#ifdef CONFIG_CPU_SW_DOMAIN_PAN +#if defined(CONFIG_CPU_SW_DOMAIN_PAN) static __always_inline unsigned int uaccess_save_and_enable(void) { @@ -43,6 +45,28 @@ static __always_inline void uaccess_restore(unsigned int flags) set_domain(flags); } +#elif defined(CONFIG_CPU_TTBR0_PAN) + +static inline unsigned int uaccess_save_and_enable(void) +{ + unsigned int old_ttbcr = cpu_get_ttbcr(); + + /* + * Enable TTBR0 page table walks (T0SZ = 0, EDP0 = 0) and ASID from + * TTBR0 (A1 = 0). + */ + cpu_set_ttbcr(old_ttbcr & ~(TTBCR_A1 | TTBCR_EPD0 | TTBCR_T0SZ_MASK)); + isb(); + + return old_ttbcr; +} + +static inline void uaccess_restore(unsigned int flags) +{ + cpu_set_ttbcr(flags); + isb(); +} + #else static inline unsigned int uaccess_save_and_enable(void) diff --git a/arch/arm/kernel/asm-offsets.c b/arch/arm/kernel/asm-offsets.c index 4915662842ff..4853875740d0 100644 --- a/arch/arm/kernel/asm-offsets.c +++ b/arch/arm/kernel/asm-offsets.c @@ -85,6 +85,7 @@ int main(void) DEFINE(S_OLD_R0, offsetof(struct pt_regs, ARM_ORIG_r0)); DEFINE(PT_REGS_SIZE, sizeof(struct pt_regs)); DEFINE(SVC_DACR, offsetof(struct svc_pt_regs, dacr)); + DEFINE(SVC_TTBCR, offsetof(struct svc_pt_regs, ttbcr)); DEFINE(SVC_REGS_SIZE, sizeof(struct svc_pt_regs)); BLANK(); DEFINE(SIGFRAME_RC3_OFFSET, offsetof(struct sigframe, retcode[3])); diff --git a/arch/arm/kernel/suspend.c b/arch/arm/kernel/suspend.c index c3ec3861dd07..58a6441b58c4 100644 --- a/arch/arm/kernel/suspend.c +++ b/arch/arm/kernel/suspend.c @@ -12,6 +12,7 @@ #include #include #include +#include extern int __cpu_suspend(unsigned long, int (*)(unsigned long), u32 cpuid); extern void cpu_resume_mmu(void); @@ -26,6 +27,13 @@ int cpu_suspend(unsigned long arg, int (*fn)(unsigned long)) if (!idmap_pgd) return -EINVAL; + /* + * Needed for the MMU disabling/enabing code to be able to run from + * TTBR0 addresses. + */ + if (IS_ENABLED(CONFIG_CPU_TTBR0_PAN)) + uaccess_save_and_enable(); + /* * Function graph tracer state gets incosistent when the kernel * calls functions that never return (aka suspend finishers) hence diff --git a/arch/arm/lib/csumpartialcopyuser.S b/arch/arm/lib/csumpartialcopyuser.S index 6928781e6bee..c289bde04743 100644 --- a/arch/arm/lib/csumpartialcopyuser.S +++ b/arch/arm/lib/csumpartialcopyuser.S @@ -13,7 +13,8 @@ .text -#ifdef CONFIG_CPU_SW_DOMAIN_PAN +#if defined(CONFIG_CPU_SW_DOMAIN_PAN) + .macro save_regs mrc p15, 0, ip, c3, c0, 0 stmfd sp!, {r1, r2, r4 - r8, ip, lr} @@ -25,7 +26,23 @@ mcr p15, 0, ip, c3, c0, 0 ret lr .endm + +#elif defined(CONFIG_CPU_TTBR0_PAN) + + .macro save_regs + mrc p15, 0, ip, c2, c0, 2 @ read TTBCR + stmfd sp!, {r1, r2, r4 - r8, ip, lr} + uaccess_enable ip + .endm + + .macro load_regs + ldmfd sp!, {r1, r2, r4 - r8, ip, lr} + mcr p15, 0, ip, c2, c0, 2 @ restore TTBCR + ret lr + .endm + #else + .macro save_regs stmfd sp!, {r1, r2, r4 - r8, lr} .endm @@ -33,6 +50,7 @@ .macro load_regs ldmfd sp!, {r1, r2, r4 - r8, pc} .endm + #endif .macro load1b, reg1 diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c index 439dc6a26bb9..dfa9554ef331 100644 --- a/arch/arm/mm/fault.c +++ b/arch/arm/mm/fault.c @@ -242,6 +242,27 @@ static inline bool is_permission_fault(unsigned int fsr) return false; } +#ifdef CONFIG_CPU_TTBR0_PAN +static inline bool ttbr0_usermode_access_allowed(struct pt_regs *regs) +{ + struct svc_pt_regs *svcregs; + + /* If we are in user mode: permission granted */ + if (user_mode(regs)) + return true; + + /* uaccess state saved above pt_regs on SVC exception entry */ + svcregs = to_svc_pt_regs(regs); + + return !(svcregs->ttbcr & TTBCR_EPD0); +} +#else +static inline bool ttbr0_usermode_access_allowed(struct pt_regs *regs) +{ + return true; +} +#endif + static int __kprobes do_page_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs) { @@ -285,6 +306,14 @@ do_page_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs) perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, addr); + /* + * Privileged access aborts with CONFIG_CPU_TTBR0_PAN enabled are + * routed via the translation fault mechanism. Check whether uaccess + * is disabled while in kernel mode. + */ + if (!ttbr0_usermode_access_allowed(regs)) + goto no_context; + if (!(flags & FAULT_FLAG_USER)) goto lock_mmap; -- cgit v1.2.3 From a9a058031cfb7e1fcd7a03a4f7228179a0426cb4 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Mon, 15 Apr 2024 09:42:42 +0100 Subject: ARM: 9382/1: ftrace: Define ftrace_stub_graph Several architectures defines this stub for the graph tracer, and it is needed for CFI, as it needs a separate symbol for it. The trick from include/asm-generic/vmlinux.lds.h to define ftrace_stub_graph to ftrace_stub isn't working when using CFI. Commit 883bbbffa5a4 contains the details. Tested-by: Kees Cook Signed-off-by: Linus Walleij Signed-off-by: Russell King (Oracle) --- arch/arm/kernel/entry-ftrace.S | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'arch/arm') diff --git a/arch/arm/kernel/entry-ftrace.S b/arch/arm/kernel/entry-ftrace.S index 3e7bcaca5e07..bc598e3d8dd2 100644 --- a/arch/arm/kernel/entry-ftrace.S +++ b/arch/arm/kernel/entry-ftrace.S @@ -271,6 +271,10 @@ ENTRY(ftrace_stub) ret lr ENDPROC(ftrace_stub) +ENTRY(ftrace_stub_graph) + ret lr +ENDPROC(ftrace_stub_graph) + #ifdef CONFIG_DYNAMIC_FTRACE __INIT -- cgit v1.2.3 From 6b0ef2792c223636a86f2c9c3fcb26502a03d5a7 Mon Sep 17 00:00:00 2001 From: Ard Biesheuvel Date: Tue, 23 Apr 2024 08:25:41 +0100 Subject: ARM: 9384/2: mm: Make tlbflush routines CFI safe Instead of avoiding CFI entirely on the TLB flush helpers, reorganize the code so that the CFI machinery can deal with it. The important things to take into account are: - functions in asm called indirectly from C need to be defined using SYM_TYPED_FUNC_START() - a reference to the asm function needs to be visible to the compiler, in order to get it to emit the typeid symbol. The latter means that defining the cpu_tlb_fns structs is best done from C code, so that the references in the static initializers will be visible to the compiler. Signed-off-by: Ard Biesheuvel Tested-by: Kees Cook Reviewed-by: Sami Tolvanen Signed-off-by: Linus Walleij Signed-off-by: Russell King (Oracle) --- arch/arm/mm/Makefile | 1 + arch/arm/mm/proc-macros.S | 15 --------- arch/arm/mm/tlb-fa.S | 12 +++---- arch/arm/mm/tlb-v4.S | 15 +++++---- arch/arm/mm/tlb-v4wb.S | 12 +++---- arch/arm/mm/tlb-v4wbi.S | 12 +++---- arch/arm/mm/tlb-v6.S | 12 +++---- arch/arm/mm/tlb-v7.S | 14 +++----- arch/arm/mm/tlb.c | 84 +++++++++++++++++++++++++++++++++++++++++++++++ 9 files changed, 119 insertions(+), 58 deletions(-) create mode 100644 arch/arm/mm/tlb.c (limited to 'arch/arm') diff --git a/arch/arm/mm/Makefile b/arch/arm/mm/Makefile index 71b858c9b10c..cc8255fdf56e 100644 --- a/arch/arm/mm/Makefile +++ b/arch/arm/mm/Makefile @@ -62,6 +62,7 @@ obj-$(CONFIG_CPU_TLB_FEROCEON) += tlb-v4wbi.o # reuse v4wbi TLB functions obj-$(CONFIG_CPU_TLB_V6) += tlb-v6.o obj-$(CONFIG_CPU_TLB_V7) += tlb-v7.o obj-$(CONFIG_CPU_TLB_FA) += tlb-fa.o +obj-y += tlb.o obj-$(CONFIG_CPU_ARM7TDMI) += proc-arm7tdmi.o obj-$(CONFIG_CPU_ARM720T) += proc-arm720.o diff --git a/arch/arm/mm/proc-macros.S b/arch/arm/mm/proc-macros.S index e43f6d716b4b..c0acfeac3e84 100644 --- a/arch/arm/mm/proc-macros.S +++ b/arch/arm/mm/proc-macros.S @@ -338,21 +338,6 @@ ENTRY(\name\()_cache_fns) .size \name\()_cache_fns, . - \name\()_cache_fns .endm -.macro define_tlb_functions name:req, flags_up:req, flags_smp - .type \name\()_tlb_fns, #object - .align 2 -ENTRY(\name\()_tlb_fns) - .long \name\()_flush_user_tlb_range - .long \name\()_flush_kern_tlb_range - .ifnb \flags_smp - ALT_SMP(.long \flags_smp ) - ALT_UP(.long \flags_up ) - .else - .long \flags_up - .endif - .size \name\()_tlb_fns, . - \name\()_tlb_fns -.endm - .macro globl_equ x, y .globl \x .equ \x, \y diff --git a/arch/arm/mm/tlb-fa.S b/arch/arm/mm/tlb-fa.S index def6161ec452..85a6fe766b21 100644 --- a/arch/arm/mm/tlb-fa.S +++ b/arch/arm/mm/tlb-fa.S @@ -15,6 +15,7 @@ */ #include #include +#include #include #include #include @@ -31,7 +32,7 @@ * - mm - mm_struct describing address space */ .align 4 -ENTRY(fa_flush_user_tlb_range) +SYM_TYPED_FUNC_START(fa_flush_user_tlb_range) vma_vm_mm ip, r2 act_mm r3 @ get current->active_mm eors r3, ip, r3 @ == mm ? @@ -46,9 +47,10 @@ ENTRY(fa_flush_user_tlb_range) blo 1b mcr p15, 0, r3, c7, c10, 4 @ data write barrier ret lr +SYM_FUNC_END(fa_flush_user_tlb_range) -ENTRY(fa_flush_kern_tlb_range) +SYM_TYPED_FUNC_START(fa_flush_kern_tlb_range) mov r3, #0 mcr p15, 0, r3, c7, c10, 4 @ drain WB bic r0, r0, #0x0ff @@ -60,8 +62,4 @@ ENTRY(fa_flush_kern_tlb_range) mcr p15, 0, r3, c7, c10, 4 @ data write barrier mcr p15, 0, r3, c7, c5, 4 @ prefetch flush (isb) ret lr - - __INITDATA - - /* define struct cpu_tlb_fns (see and proc-macros.S) */ - define_tlb_functions fa, fa_tlb_flags +SYM_FUNC_END(fa_flush_kern_tlb_range) diff --git a/arch/arm/mm/tlb-v4.S b/arch/arm/mm/tlb-v4.S index b962b4e75158..09ff69008d94 100644 --- a/arch/arm/mm/tlb-v4.S +++ b/arch/arm/mm/tlb-v4.S @@ -11,6 +11,7 @@ */ #include #include +#include #include #include #include @@ -27,7 +28,7 @@ * - mm - mm_struct describing address space */ .align 5 -ENTRY(v4_flush_user_tlb_range) +SYM_TYPED_FUNC_START(v4_flush_user_tlb_range) vma_vm_mm ip, r2 act_mm r3 @ get current->active_mm eors r3, ip, r3 @ == mm ? @@ -40,6 +41,7 @@ ENTRY(v4_flush_user_tlb_range) cmp r0, r1 blo 1b ret lr +SYM_FUNC_END(v4_flush_user_tlb_range) /* * v4_flush_kern_tlb_range(start, end) @@ -50,10 +52,11 @@ ENTRY(v4_flush_user_tlb_range) * - start - virtual address (may not be aligned) * - end - virtual address (may not be aligned) */ +#ifdef CONFIG_CFI_CLANG +SYM_TYPED_FUNC_START(v4_flush_kern_tlb_range) + b .v4_flush_kern_tlb_range +SYM_FUNC_END(v4_flush_kern_tlb_range) +#else .globl v4_flush_kern_tlb_range .equ v4_flush_kern_tlb_range, .v4_flush_kern_tlb_range - - __INITDATA - - /* define struct cpu_tlb_fns (see and proc-macros.S) */ - define_tlb_functions v4, v4_tlb_flags +#endif diff --git a/arch/arm/mm/tlb-v4wb.S b/arch/arm/mm/tlb-v4wb.S index 9348bba7586a..04e46c359e75 100644 --- a/arch/arm/mm/tlb-v4wb.S +++ b/arch/arm/mm/tlb-v4wb.S @@ -11,6 +11,7 @@ */ #include #include +#include #include #include #include @@ -27,7 +28,7 @@ * - mm - mm_struct describing address space */ .align 5 -ENTRY(v4wb_flush_user_tlb_range) +SYM_TYPED_FUNC_START(v4wb_flush_user_tlb_range) vma_vm_mm ip, r2 act_mm r3 @ get current->active_mm eors r3, ip, r3 @ == mm ? @@ -43,6 +44,7 @@ ENTRY(v4wb_flush_user_tlb_range) cmp r0, r1 blo 1b ret lr +SYM_FUNC_END(v4wb_flush_user_tlb_range) /* * v4_flush_kern_tlb_range(start, end) @@ -53,7 +55,7 @@ ENTRY(v4wb_flush_user_tlb_range) * - start - virtual address (may not be aligned) * - end - virtual address (may not be aligned) */ -ENTRY(v4wb_flush_kern_tlb_range) +SYM_TYPED_FUNC_START(v4wb_flush_kern_tlb_range) mov r3, #0 mcr p15, 0, r3, c7, c10, 4 @ drain WB bic r0, r0, #0x0ff @@ -64,8 +66,4 @@ ENTRY(v4wb_flush_kern_tlb_range) cmp r0, r1 blo 1b ret lr - - __INITDATA - - /* define struct cpu_tlb_fns (see and proc-macros.S) */ - define_tlb_functions v4wb, v4wb_tlb_flags +SYM_FUNC_END(v4wb_flush_kern_tlb_range) diff --git a/arch/arm/mm/tlb-v4wbi.S b/arch/arm/mm/tlb-v4wbi.S index d4f9040a4111..502dfe5628a3 100644 --- a/arch/arm/mm/tlb-v4wbi.S +++ b/arch/arm/mm/tlb-v4wbi.S @@ -11,6 +11,7 @@ */ #include #include +#include #include #include #include @@ -26,7 +27,7 @@ * - mm - mm_struct describing address space */ .align 5 -ENTRY(v4wbi_flush_user_tlb_range) +SYM_TYPED_FUNC_START(v4wbi_flush_user_tlb_range) vma_vm_mm ip, r2 act_mm r3 @ get current->active_mm eors r3, ip, r3 @ == mm ? @@ -43,8 +44,9 @@ ENTRY(v4wbi_flush_user_tlb_range) cmp r0, r1 blo 1b ret lr +SYM_FUNC_END(v4wbi_flush_user_tlb_range) -ENTRY(v4wbi_flush_kern_tlb_range) +SYM_TYPED_FUNC_START(v4wbi_flush_kern_tlb_range) mov r3, #0 mcr p15, 0, r3, c7, c10, 4 @ drain WB bic r0, r0, #0x0ff @@ -55,8 +57,4 @@ ENTRY(v4wbi_flush_kern_tlb_range) cmp r0, r1 blo 1b ret lr - - __INITDATA - - /* define struct cpu_tlb_fns (see and proc-macros.S) */ - define_tlb_functions v4wbi, v4wbi_tlb_flags +SYM_FUNC_END(v4wbi_flush_kern_tlb_range) diff --git a/arch/arm/mm/tlb-v6.S b/arch/arm/mm/tlb-v6.S index 1d91e49b2c2d..8256a67ac654 100644 --- a/arch/arm/mm/tlb-v6.S +++ b/arch/arm/mm/tlb-v6.S @@ -9,6 +9,7 @@ */ #include #include +#include #include #include #include @@ -32,7 +33,7 @@ * - the "Invalidate single entry" instruction will invalidate * both the I and the D TLBs on Harvard-style TLBs */ -ENTRY(v6wbi_flush_user_tlb_range) +SYM_TYPED_FUNC_START(v6wbi_flush_user_tlb_range) vma_vm_mm r3, r2 @ get vma->vm_mm mov ip, #0 mmid r3, r3 @ get vm_mm->context.id @@ -56,6 +57,7 @@ ENTRY(v6wbi_flush_user_tlb_range) blo 1b mcr p15, 0, ip, c7, c10, 4 @ data synchronization barrier ret lr +SYM_FUNC_END(v6wbi_flush_user_tlb_range) /* * v6wbi_flush_kern_tlb_range(start,end) @@ -65,7 +67,7 @@ ENTRY(v6wbi_flush_user_tlb_range) * - start - start address (may not be aligned) * - end - end address (exclusive, may not be aligned) */ -ENTRY(v6wbi_flush_kern_tlb_range) +SYM_TYPED_FUNC_START(v6wbi_flush_kern_tlb_range) mov r2, #0 mcr p15, 0, r2, c7, c10, 4 @ drain write buffer mov r0, r0, lsr #PAGE_SHIFT @ align address @@ -85,8 +87,4 @@ ENTRY(v6wbi_flush_kern_tlb_range) mcr p15, 0, r2, c7, c10, 4 @ data synchronization barrier mcr p15, 0, r2, c7, c5, 4 @ prefetch flush (isb) ret lr - - __INIT - - /* define struct cpu_tlb_fns (see and proc-macros.S) */ - define_tlb_functions v6wbi, v6wbi_tlb_flags +SYM_FUNC_END(v6wbi_flush_kern_tlb_range) diff --git a/arch/arm/mm/tlb-v7.S b/arch/arm/mm/tlb-v7.S index 35fd6d4f0d03..f1aa0764a2cc 100644 --- a/arch/arm/mm/tlb-v7.S +++ b/arch/arm/mm/tlb-v7.S @@ -10,6 +10,7 @@ */ #include #include +#include #include #include #include @@ -31,7 +32,7 @@ * - the "Invalidate single entry" instruction will invalidate * both the I and the D TLBs on Harvard-style TLBs */ -ENTRY(v7wbi_flush_user_tlb_range) +SYM_TYPED_FUNC_START(v7wbi_flush_user_tlb_range) vma_vm_mm r3, r2 @ get vma->vm_mm mmid r3, r3 @ get vm_mm->context.id dsb ish @@ -57,7 +58,7 @@ ENTRY(v7wbi_flush_user_tlb_range) blo 1b dsb ish ret lr -ENDPROC(v7wbi_flush_user_tlb_range) +SYM_FUNC_END(v7wbi_flush_user_tlb_range) /* * v7wbi_flush_kern_tlb_range(start,end) @@ -67,7 +68,7 @@ ENDPROC(v7wbi_flush_user_tlb_range) * - start - start address (may not be aligned) * - end - end address (exclusive, may not be aligned) */ -ENTRY(v7wbi_flush_kern_tlb_range) +SYM_TYPED_FUNC_START(v7wbi_flush_kern_tlb_range) dsb ish mov r0, r0, lsr #PAGE_SHIFT @ align address mov r1, r1, lsr #PAGE_SHIFT @@ -86,9 +87,4 @@ ENTRY(v7wbi_flush_kern_tlb_range) dsb ish isb ret lr -ENDPROC(v7wbi_flush_kern_tlb_range) - - __INIT - - /* define struct cpu_tlb_fns (see and proc-macros.S) */ - define_tlb_functions v7wbi, v7wbi_tlb_flags_up, flags_smp=v7wbi_tlb_flags_smp +SYM_FUNC_END(v7wbi_flush_kern_tlb_range) diff --git a/arch/arm/mm/tlb.c b/arch/arm/mm/tlb.c new file mode 100644 index 000000000000..42359793120b --- /dev/null +++ b/arch/arm/mm/tlb.c @@ -0,0 +1,84 @@ +// SPDX-License-Identifier: GPL-2.0-only +// Copyright 2024 Google LLC +// Author: Ard Biesheuvel + +#include +#include + +#ifdef CONFIG_CPU_TLB_V4WT +void v4_flush_user_tlb_range(unsigned long, unsigned long, struct vm_area_struct *); +void v4_flush_kern_tlb_range(unsigned long, unsigned long); + +struct cpu_tlb_fns v4_tlb_fns __initconst = { + .flush_user_range = v4_flush_user_tlb_range, + .flush_kern_range = v4_flush_kern_tlb_range, + .tlb_flags = v4_tlb_flags, +}; +#endif + +#ifdef CONFIG_CPU_TLB_V4WB +void v4wb_flush_user_tlb_range(unsigned long, unsigned long, struct vm_area_struct *); +void v4wb_flush_kern_tlb_range(unsigned long, unsigned long); + +struct cpu_tlb_fns v4wb_tlb_fns __initconst = { + .flush_user_range = v4wb_flush_user_tlb_range, + .flush_kern_range = v4wb_flush_kern_tlb_range, + .tlb_flags = v4wb_tlb_flags, +}; +#endif + +#if defined(CONFIG_CPU_TLB_V4WBI) || defined(CONFIG_CPU_TLB_FEROCEON) +void v4wbi_flush_user_tlb_range(unsigned long, unsigned long, struct vm_area_struct *); +void v4wbi_flush_kern_tlb_range(unsigned long, unsigned long); + +struct cpu_tlb_fns v4wbi_tlb_fns __initconst = { + .flush_user_range = v4wbi_flush_user_tlb_range, + .flush_kern_range = v4wbi_flush_kern_tlb_range, + .tlb_flags = v4wbi_tlb_flags, +}; +#endif + +#ifdef CONFIG_CPU_TLB_V6 +void v6wbi_flush_user_tlb_range(unsigned long, unsigned long, struct vm_area_struct *); +void v6wbi_flush_kern_tlb_range(unsigned long, unsigned long); + +struct cpu_tlb_fns v6wbi_tlb_fns __initconst = { + .flush_user_range = v6wbi_flush_user_tlb_range, + .flush_kern_range = v6wbi_flush_kern_tlb_range, + .tlb_flags = v6wbi_tlb_flags, +}; +#endif + +#ifdef CONFIG_CPU_TLB_V7 +void v7wbi_flush_user_tlb_range(unsigned long, unsigned long, struct vm_area_struct *); +void v7wbi_flush_kern_tlb_range(unsigned long, unsigned long); + +struct cpu_tlb_fns v7wbi_tlb_fns __initconst = { + .flush_user_range = v7wbi_flush_user_tlb_range, + .flush_kern_range = v7wbi_flush_kern_tlb_range, + .tlb_flags = IS_ENABLED(CONFIG_SMP) ? v7wbi_tlb_flags_smp + : v7wbi_tlb_flags_up, +}; + +#ifdef CONFIG_SMP_ON_UP +/* This will be run-time patched so the offset better be right */ +static_assert(offsetof(struct cpu_tlb_fns, tlb_flags) == 8); + +asm(" .pushsection \".alt.smp.init\", \"a\" \n" \ + " .align 2 \n" \ + " .long v7wbi_tlb_fns + 8 - . \n" \ + " .long " __stringify(v7wbi_tlb_flags_up) " \n" \ + " .popsection \n"); +#endif +#endif + +#ifdef CONFIG_CPU_TLB_FA +void fa_flush_user_tlb_range(unsigned long, unsigned long, struct vm_area_struct *); +void fa_flush_kern_tlb_range(unsigned long, unsigned long); + +struct cpu_tlb_fns fa_tlb_fns __initconst = { + .flush_user_range = fa_flush_user_tlb_range, + .flush_kern_range = fa_flush_kern_tlb_range, + .tlb_flags = fa_tlb_flags, +}; +#endif -- cgit v1.2.3 From 1036b89580dc611cfb5dfe66af6b35452dfb272c Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Tue, 23 Apr 2024 08:29:31 +0100 Subject: ARM: 9385/2: mm: Type-annotate all cache assembly routines Tag all references to assembly functions with SYM_TYPED_FUNC_START() and SYM_FUNC_END() so they also become CFI-safe. When we add SYM_TYPED_FUNC_START() to assembly calls, a function prototype signature will be emitted into the object file at (pc-4) at the call site, so that the KCFI runtime check can compare this to the expected call. Example: 8011ae38: a540670c .word 0xa540670c 8011ae3c : 8011ae3c: e3a00000 mov r0, #0 8011ae40: ee070f11 mcr 15, 0, r0, cr7, cr1, {0} 8011ae44: e12fff1e bx lr This means no "fallthrough" code can enter a SYM_TYPED_FUNC_START() call from above it: there will be a function prototype signature there, so those are consistently converted to a branch or ret lr depending on context. Tested-by: Kees Cook Reviewed-by: Sami Tolvanen Signed-off-by: Linus Walleij Signed-off-by: Russell King (Oracle) --- arch/arm/mm/cache-fa.S | 39 +++++++++++++++++++++------------- arch/arm/mm/cache-nop.S | 51 ++++++++++++++++++++++++++------------------- arch/arm/mm/cache-v4.S | 47 ++++++++++++++++++++++++----------------- arch/arm/mm/cache-v4wb.S | 39 ++++++++++++++++++++-------------- arch/arm/mm/cache-v4wt.S | 47 ++++++++++++++++++++++++----------------- arch/arm/mm/cache-v6.S | 41 ++++++++++++++++++++---------------- arch/arm/mm/cache-v7.S | 49 ++++++++++++++++++++++--------------------- arch/arm/mm/cache-v7m.S | 45 ++++++++++++++++++++------------------- arch/arm/mm/proc-arm1020.S | 39 +++++++++++++++++++++------------- arch/arm/mm/proc-arm1020e.S | 40 ++++++++++++++++++++++------------- arch/arm/mm/proc-arm1022.S | 39 +++++++++++++++++++++------------- arch/arm/mm/proc-arm1026.S | 40 ++++++++++++++++++++++------------- arch/arm/mm/proc-arm920.S | 40 +++++++++++++++++++++-------------- arch/arm/mm/proc-arm922.S | 40 +++++++++++++++++++++-------------- arch/arm/mm/proc-arm925.S | 38 ++++++++++++++++++++------------- arch/arm/mm/proc-arm926.S | 38 ++++++++++++++++++++------------- arch/arm/mm/proc-arm940.S | 42 ++++++++++++++++++++++--------------- arch/arm/mm/proc-arm946.S | 38 ++++++++++++++++++++------------- arch/arm/mm/proc-feroceon.S | 48 +++++++++++++++++++++++++----------------- arch/arm/mm/proc-mohawk.S | 38 ++++++++++++++++++++------------- arch/arm/mm/proc-xsc3.S | 39 +++++++++++++++++++++------------- arch/arm/mm/proc-xscale.S | 40 +++++++++++++++++++++-------------- 22 files changed, 544 insertions(+), 373 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mm/cache-fa.S b/arch/arm/mm/cache-fa.S index 71c64e92dead..c3642d5daf38 100644 --- a/arch/arm/mm/cache-fa.S +++ b/arch/arm/mm/cache-fa.S @@ -12,6 +12,7 @@ */ #include #include +#include #include #include @@ -39,11 +40,11 @@ * * Unconditionally clean and invalidate the entire icache. */ -ENTRY(fa_flush_icache_all) +SYM_TYPED_FUNC_START(fa_flush_icache_all) mov r0, #0 mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache ret lr -ENDPROC(fa_flush_icache_all) +SYM_FUNC_END(fa_flush_icache_all) /* * flush_user_cache_all() @@ -51,14 +52,16 @@ ENDPROC(fa_flush_icache_all) * Clean and invalidate all cache entries in a particular address * space. */ -ENTRY(fa_flush_user_cache_all) - /* FALLTHROUGH */ +SYM_TYPED_FUNC_START(fa_flush_user_cache_all) + b fa_flush_kern_cache_all +SYM_FUNC_END(fa_flush_user_cache_all) + /* * flush_kern_cache_all() * * Clean and invalidate the entire cache. */ -ENTRY(fa_flush_kern_cache_all) +SYM_TYPED_FUNC_START(fa_flush_kern_cache_all) mov ip, #0 mov r2, #VM_EXEC __flush_whole_cache: @@ -69,6 +72,7 @@ __flush_whole_cache: mcrne p15, 0, ip, c7, c10, 4 @ drain write buffer mcrne p15, 0, ip, c7, c5, 4 @ prefetch flush ret lr +SYM_FUNC_END(fa_flush_kern_cache_all) /* * flush_user_cache_range(start, end, flags) @@ -80,7 +84,7 @@ __flush_whole_cache: * - end - end address (exclusive, page aligned) * - flags - vma_area_struct flags describing address space */ -ENTRY(fa_flush_user_cache_range) +SYM_TYPED_FUNC_START(fa_flush_user_cache_range) mov ip, #0 sub r3, r1, r0 @ calculate total size cmp r3, #CACHE_DLIMIT @ total size >= limit? @@ -97,6 +101,7 @@ ENTRY(fa_flush_user_cache_range) mcrne p15, 0, ip, c7, c10, 4 @ data write barrier mcrne p15, 0, ip, c7, c5, 4 @ prefetch flush ret lr +SYM_FUNC_END(fa_flush_user_cache_range) /* * coherent_kern_range(start, end) @@ -108,8 +113,9 @@ ENTRY(fa_flush_user_cache_range) * - start - virtual start address * - end - virtual end address */ -ENTRY(fa_coherent_kern_range) - /* fall through */ +SYM_TYPED_FUNC_START(fa_coherent_kern_range) + b fa_coherent_user_range +SYM_FUNC_END(fa_coherent_kern_range) /* * coherent_user_range(start, end) @@ -121,7 +127,7 @@ ENTRY(fa_coherent_kern_range) * - start - virtual start address * - end - virtual end address */ -ENTRY(fa_coherent_user_range) +SYM_TYPED_FUNC_START(fa_coherent_user_range) bic r0, r0, #CACHE_DLINESIZE - 1 1: mcr p15, 0, r0, c7, c14, 1 @ clean and invalidate D entry mcr p15, 0, r0, c7, c5, 1 @ invalidate I entry @@ -133,6 +139,7 @@ ENTRY(fa_coherent_user_range) mcr p15, 0, r0, c7, c10, 4 @ drain write buffer mcr p15, 0, r0, c7, c5, 4 @ prefetch flush ret lr +SYM_FUNC_END(fa_coherent_user_range) /* * flush_kern_dcache_area(void *addr, size_t size) @@ -143,7 +150,7 @@ ENTRY(fa_coherent_user_range) * - addr - kernel address * - size - size of region */ -ENTRY(fa_flush_kern_dcache_area) +SYM_TYPED_FUNC_START(fa_flush_kern_dcache_area) add r1, r0, r1 1: mcr p15, 0, r0, c7, c14, 1 @ clean & invalidate D line add r0, r0, #CACHE_DLINESIZE @@ -153,6 +160,7 @@ ENTRY(fa_flush_kern_dcache_area) mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache mcr p15, 0, r0, c7, c10, 4 @ drain write buffer ret lr +SYM_FUNC_END(fa_flush_kern_dcache_area) /* * dma_inv_range(start, end) @@ -203,7 +211,7 @@ fa_dma_clean_range: * - start - virtual start address of region * - end - virtual end address of region */ -ENTRY(fa_dma_flush_range) +SYM_TYPED_FUNC_START(fa_dma_flush_range) bic r0, r0, #CACHE_DLINESIZE - 1 1: mcr p15, 0, r0, c7, c14, 1 @ clean & invalidate D entry add r0, r0, #CACHE_DLINESIZE @@ -212,6 +220,7 @@ ENTRY(fa_dma_flush_range) mov r0, #0 mcr p15, 0, r0, c7, c10, 4 @ drain write buffer ret lr +SYM_FUNC_END(fa_dma_flush_range) /* * dma_map_area(start, size, dir) @@ -219,13 +228,13 @@ ENTRY(fa_dma_flush_range) * - size - size of region * - dir - DMA direction */ -ENTRY(fa_dma_map_area) +SYM_TYPED_FUNC_START(fa_dma_map_area) add r1, r1, r0 cmp r2, #DMA_TO_DEVICE beq fa_dma_clean_range bcs fa_dma_inv_range b fa_dma_flush_range -ENDPROC(fa_dma_map_area) +SYM_FUNC_END(fa_dma_map_area) /* * dma_unmap_area(start, size, dir) @@ -233,9 +242,9 @@ ENDPROC(fa_dma_map_area) * - size - size of region * - dir - DMA direction */ -ENTRY(fa_dma_unmap_area) +SYM_TYPED_FUNC_START(fa_dma_unmap_area) ret lr -ENDPROC(fa_dma_unmap_area) +SYM_FUNC_END(fa_dma_unmap_area) .globl fa_flush_kern_cache_louis .equ fa_flush_kern_cache_louis, fa_flush_kern_cache_all diff --git a/arch/arm/mm/cache-nop.S b/arch/arm/mm/cache-nop.S index 72d939ef8798..56e94091a55f 100644 --- a/arch/arm/mm/cache-nop.S +++ b/arch/arm/mm/cache-nop.S @@ -1,47 +1,56 @@ /* SPDX-License-Identifier: GPL-2.0-only */ #include #include +#include #include #include "proc-macros.S" -ENTRY(nop_flush_icache_all) +SYM_TYPED_FUNC_START(nop_flush_icache_all) ret lr -ENDPROC(nop_flush_icache_all) +SYM_FUNC_END(nop_flush_icache_all) - .globl nop_flush_kern_cache_all - .equ nop_flush_kern_cache_all, nop_flush_icache_all +SYM_TYPED_FUNC_START(nop_flush_kern_cache_all) + ret lr +SYM_FUNC_END(nop_flush_kern_cache_all) .globl nop_flush_kern_cache_louis .equ nop_flush_kern_cache_louis, nop_flush_icache_all - .globl nop_flush_user_cache_all - .equ nop_flush_user_cache_all, nop_flush_icache_all +SYM_TYPED_FUNC_START(nop_flush_user_cache_all) + ret lr +SYM_FUNC_END(nop_flush_user_cache_all) - .globl nop_flush_user_cache_range - .equ nop_flush_user_cache_range, nop_flush_icache_all +SYM_TYPED_FUNC_START(nop_flush_user_cache_range) + ret lr +SYM_FUNC_END(nop_flush_user_cache_range) - .globl nop_coherent_kern_range - .equ nop_coherent_kern_range, nop_flush_icache_all +SYM_TYPED_FUNC_START(nop_coherent_kern_range) + ret lr +SYM_FUNC_END(nop_coherent_kern_range) -ENTRY(nop_coherent_user_range) +SYM_TYPED_FUNC_START(nop_coherent_user_range) mov r0, 0 ret lr -ENDPROC(nop_coherent_user_range) - - .globl nop_flush_kern_dcache_area - .equ nop_flush_kern_dcache_area, nop_flush_icache_all +SYM_FUNC_END(nop_coherent_user_range) - .globl nop_dma_flush_range - .equ nop_dma_flush_range, nop_flush_icache_all +SYM_TYPED_FUNC_START(nop_flush_kern_dcache_area) + ret lr +SYM_FUNC_END(nop_flush_kern_dcache_area) - .globl nop_dma_map_area - .equ nop_dma_map_area, nop_flush_icache_all +SYM_TYPED_FUNC_START(nop_dma_flush_range) + ret lr +SYM_FUNC_END(nop_dma_flush_range) - .globl nop_dma_unmap_area - .equ nop_dma_unmap_area, nop_flush_icache_all +SYM_TYPED_FUNC_START(nop_dma_map_area) + ret lr +SYM_FUNC_END(nop_dma_map_area) __INITDATA @ define struct cpu_cache_fns (see and proc-macros.S) define_cache_functions nop + +SYM_TYPED_FUNC_START(nop_dma_unmap_area) + ret lr +SYM_FUNC_END(nop_dma_unmap_area) diff --git a/arch/arm/mm/cache-v4.S b/arch/arm/mm/cache-v4.S index 7787057e4990..22d9c9d9e0d7 100644 --- a/arch/arm/mm/cache-v4.S +++ b/arch/arm/mm/cache-v4.S @@ -6,6 +6,7 @@ */ #include #include +#include #include #include #include "proc-macros.S" @@ -15,9 +16,9 @@ * * Unconditionally clean and invalidate the entire icache. */ -ENTRY(v4_flush_icache_all) +SYM_TYPED_FUNC_START(v4_flush_icache_all) ret lr -ENDPROC(v4_flush_icache_all) +SYM_FUNC_END(v4_flush_icache_all) /* * flush_user_cache_all() @@ -27,21 +28,24 @@ ENDPROC(v4_flush_icache_all) * * - mm - mm_struct describing address space */ -ENTRY(v4_flush_user_cache_all) - /* FALLTHROUGH */ +SYM_TYPED_FUNC_START(v4_flush_user_cache_all) + b v4_flush_kern_cache_all +SYM_FUNC_END(v4_flush_user_cache_all) + /* * flush_kern_cache_all() * * Clean and invalidate the entire cache. */ -ENTRY(v4_flush_kern_cache_all) +SYM_TYPED_FUNC_START(v4_flush_kern_cache_all) #ifdef CONFIG_CPU_CP15 mov r0, #0 mcr p15, 0, r0, c7, c7, 0 @ flush ID cache ret lr #else - /* FALLTHROUGH */ + ret lr #endif +SYM_FUNC_END(v4_flush_kern_cache_all) /* * flush_user_cache_range(start, end, flags) @@ -53,14 +57,15 @@ ENTRY(v4_flush_kern_cache_all) * - end - end address (exclusive, may not be aligned) * - flags - vma_area_struct flags describing address space */ -ENTRY(v4_flush_user_cache_range) +SYM_TYPED_FUNC_START(v4_flush_user_cache_range) #ifdef CONFIG_CPU_CP15 mov ip, #0 mcr p15, 0, ip, c7, c7, 0 @ flush ID cache ret lr #else - /* FALLTHROUGH */ + ret lr #endif +SYM_FUNC_END(v4_flush_user_cache_range) /* * coherent_kern_range(start, end) @@ -72,8 +77,9 @@ ENTRY(v4_flush_user_cache_range) * - start - virtual start address * - end - virtual end address */ -ENTRY(v4_coherent_kern_range) - /* FALLTHROUGH */ +SYM_TYPED_FUNC_START(v4_coherent_kern_range) + ret lr +SYM_FUNC_END(v4_coherent_kern_range) /* * coherent_user_range(start, end) @@ -85,9 +91,10 @@ ENTRY(v4_coherent_kern_range) * - start - virtual start address * - end - virtual end address */ -ENTRY(v4_coherent_user_range) +SYM_TYPED_FUNC_START(v4_coherent_user_range) mov r0, #0 ret lr +SYM_FUNC_END(v4_coherent_user_range) /* * flush_kern_dcache_area(void *addr, size_t size) @@ -98,8 +105,9 @@ ENTRY(v4_coherent_user_range) * - addr - kernel address * - size - region size */ -ENTRY(v4_flush_kern_dcache_area) - /* FALLTHROUGH */ +SYM_TYPED_FUNC_START(v4_flush_kern_dcache_area) + b v4_dma_flush_range +SYM_FUNC_END(v4_flush_kern_dcache_area) /* * dma_flush_range(start, end) @@ -109,12 +117,13 @@ ENTRY(v4_flush_kern_dcache_area) * - start - virtual start address * - end - virtual end address */ -ENTRY(v4_dma_flush_range) +SYM_TYPED_FUNC_START(v4_dma_flush_range) #ifdef CONFIG_CPU_CP15 mov r0, #0 mcr p15, 0, r0, c7, c7, 0 @ flush ID cache #endif ret lr +SYM_FUNC_END(v4_dma_flush_range) /* * dma_unmap_area(start, size, dir) @@ -122,10 +131,11 @@ ENTRY(v4_dma_flush_range) * - size - size of region * - dir - DMA direction */ -ENTRY(v4_dma_unmap_area) +SYM_TYPED_FUNC_START(v4_dma_unmap_area) teq r2, #DMA_TO_DEVICE bne v4_dma_flush_range - /* FALLTHROUGH */ + ret lr +SYM_FUNC_END(v4_dma_unmap_area) /* * dma_map_area(start, size, dir) @@ -133,10 +143,9 @@ ENTRY(v4_dma_unmap_area) * - size - size of region * - dir - DMA direction */ -ENTRY(v4_dma_map_area) +SYM_TYPED_FUNC_START(v4_dma_map_area) ret lr -ENDPROC(v4_dma_unmap_area) -ENDPROC(v4_dma_map_area) +SYM_FUNC_END(v4_dma_map_area) .globl v4_flush_kern_cache_louis .equ v4_flush_kern_cache_louis, v4_flush_kern_cache_all diff --git a/arch/arm/mm/cache-v4wb.S b/arch/arm/mm/cache-v4wb.S index ad382cee0fdb..0d97b594e23f 100644 --- a/arch/arm/mm/cache-v4wb.S +++ b/arch/arm/mm/cache-v4wb.S @@ -6,6 +6,7 @@ */ #include #include +#include #include #include #include "proc-macros.S" @@ -53,11 +54,11 @@ flush_base: * * Unconditionally clean and invalidate the entire icache. */ -ENTRY(v4wb_flush_icache_all) +SYM_TYPED_FUNC_START(v4wb_flush_icache_all) mov r0, #0 mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache ret lr -ENDPROC(v4wb_flush_icache_all) +SYM_FUNC_END(v4wb_flush_icache_all) /* * flush_user_cache_all() @@ -65,14 +66,16 @@ ENDPROC(v4wb_flush_icache_all) * Clean and invalidate all cache entries in a particular address * space. */ -ENTRY(v4wb_flush_user_cache_all) - /* FALLTHROUGH */ +SYM_TYPED_FUNC_START(v4wb_flush_user_cache_all) + b v4wb_flush_kern_cache_all +SYM_FUNC_END(v4wb_flush_user_cache_all) + /* * flush_kern_cache_all() * * Clean and invalidate the entire cache. */ -ENTRY(v4wb_flush_kern_cache_all) +SYM_TYPED_FUNC_START(v4wb_flush_kern_cache_all) mov ip, #0 mcr p15, 0, ip, c7, c5, 0 @ invalidate I cache __flush_whole_cache: @@ -93,6 +96,7 @@ __flush_whole_cache: #endif mcr p15, 0, ip, c7, c10, 4 @ drain write buffer ret lr +SYM_FUNC_END(v4wb_flush_kern_cache_all) /* * flush_user_cache_range(start, end, flags) @@ -104,7 +108,7 @@ __flush_whole_cache: * - end - end address (exclusive, page aligned) * - flags - vma_area_struct flags describing address space */ -ENTRY(v4wb_flush_user_cache_range) +SYM_TYPED_FUNC_START(v4wb_flush_user_cache_range) mov ip, #0 sub r3, r1, r0 @ calculate total size tst r2, #VM_EXEC @ executable region? @@ -121,6 +125,7 @@ ENTRY(v4wb_flush_user_cache_range) tst r2, #VM_EXEC mcrne p15, 0, ip, c7, c10, 4 @ drain write buffer ret lr +SYM_FUNC_END(v4wb_flush_user_cache_range) /* * flush_kern_dcache_area(void *addr, size_t size) @@ -131,9 +136,10 @@ ENTRY(v4wb_flush_user_cache_range) * - addr - kernel address * - size - region size */ -ENTRY(v4wb_flush_kern_dcache_area) +SYM_TYPED_FUNC_START(v4wb_flush_kern_dcache_area) add r1, r0, r1 - /* fall through */ + b v4wb_coherent_user_range +SYM_FUNC_END(v4wb_flush_kern_dcache_area) /* * coherent_kern_range(start, end) @@ -145,8 +151,9 @@ ENTRY(v4wb_flush_kern_dcache_area) * - start - virtual start address * - end - virtual end address */ -ENTRY(v4wb_coherent_kern_range) - /* fall through */ +SYM_TYPED_FUNC_START(v4wb_coherent_kern_range) + b v4wb_coherent_user_range +SYM_FUNC_END(v4wb_coherent_kern_range) /* * coherent_user_range(start, end) @@ -158,7 +165,7 @@ ENTRY(v4wb_coherent_kern_range) * - start - virtual start address * - end - virtual end address */ -ENTRY(v4wb_coherent_user_range) +SYM_TYPED_FUNC_START(v4wb_coherent_user_range) bic r0, r0, #CACHE_DLINESIZE - 1 1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry mcr p15, 0, r0, c7, c6, 1 @ invalidate D entry @@ -169,7 +176,7 @@ ENTRY(v4wb_coherent_user_range) mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache mcr p15, 0, r0, c7, c10, 4 @ drain WB ret lr - +SYM_FUNC_END(v4wb_coherent_user_range) /* * dma_inv_range(start, end) @@ -231,13 +238,13 @@ v4wb_dma_clean_range: * - size - size of region * - dir - DMA direction */ -ENTRY(v4wb_dma_map_area) +SYM_TYPED_FUNC_START(v4wb_dma_map_area) add r1, r1, r0 cmp r2, #DMA_TO_DEVICE beq v4wb_dma_clean_range bcs v4wb_dma_inv_range b v4wb_dma_flush_range -ENDPROC(v4wb_dma_map_area) +SYM_FUNC_END(v4wb_dma_map_area) /* * dma_unmap_area(start, size, dir) @@ -245,9 +252,9 @@ ENDPROC(v4wb_dma_map_area) * - size - size of region * - dir - DMA direction */ -ENTRY(v4wb_dma_unmap_area) +SYM_TYPED_FUNC_START(v4wb_dma_unmap_area) ret lr -ENDPROC(v4wb_dma_unmap_area) +SYM_FUNC_END(v4wb_dma_unmap_area) .globl v4wb_flush_kern_cache_louis .equ v4wb_flush_kern_cache_louis, v4wb_flush_kern_cache_all diff --git a/arch/arm/mm/cache-v4wt.S b/arch/arm/mm/cache-v4wt.S index 0b290c25a99d..eee6d8f06b4d 100644 --- a/arch/arm/mm/cache-v4wt.S +++ b/arch/arm/mm/cache-v4wt.S @@ -10,6 +10,7 @@ */ #include #include +#include #include #include #include "proc-macros.S" @@ -43,11 +44,11 @@ * * Unconditionally clean and invalidate the entire icache. */ -ENTRY(v4wt_flush_icache_all) +SYM_TYPED_FUNC_START(v4wt_flush_icache_all) mov r0, #0 mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache ret lr -ENDPROC(v4wt_flush_icache_all) +SYM_FUNC_END(v4wt_flush_icache_all) /* * flush_user_cache_all() @@ -55,14 +56,16 @@ ENDPROC(v4wt_flush_icache_all) * Invalidate all cache entries in a particular address * space. */ -ENTRY(v4wt_flush_user_cache_all) - /* FALLTHROUGH */ +SYM_TYPED_FUNC_START(v4wt_flush_user_cache_all) + b v4wt_flush_kern_cache_all +SYM_FUNC_END(v4wt_flush_user_cache_all) + /* * flush_kern_cache_all() * * Clean and invalidate the entire cache. */ -ENTRY(v4wt_flush_kern_cache_all) +SYM_TYPED_FUNC_START(v4wt_flush_kern_cache_all) mov r2, #VM_EXEC mov ip, #0 __flush_whole_cache: @@ -70,6 +73,7 @@ __flush_whole_cache: mcrne p15, 0, ip, c7, c5, 0 @ invalidate I cache mcr p15, 0, ip, c7, c6, 0 @ invalidate D cache ret lr +SYM_FUNC_END(v4wt_flush_kern_cache_all) /* * flush_user_cache_range(start, end, flags) @@ -81,7 +85,7 @@ __flush_whole_cache: * - end - end address (exclusive, page aligned) * - flags - vma_area_struct flags describing address space */ -ENTRY(v4wt_flush_user_cache_range) +SYM_TYPED_FUNC_START(v4wt_flush_user_cache_range) sub r3, r1, r0 @ calculate total size cmp r3, #CACHE_DLIMIT bhs __flush_whole_cache @@ -93,6 +97,7 @@ ENTRY(v4wt_flush_user_cache_range) cmp r0, r1 blo 1b ret lr +SYM_FUNC_END(v4wt_flush_user_cache_range) /* * coherent_kern_range(start, end) @@ -104,8 +109,9 @@ ENTRY(v4wt_flush_user_cache_range) * - start - virtual start address * - end - virtual end address */ -ENTRY(v4wt_coherent_kern_range) - /* FALLTRHOUGH */ +SYM_TYPED_FUNC_START(v4wt_coherent_kern_range) + b v4wt_coherent_user_range +SYM_FUNC_END(v4wt_coherent_kern_range) /* * coherent_user_range(start, end) @@ -117,7 +123,7 @@ ENTRY(v4wt_coherent_kern_range) * - start - virtual start address * - end - virtual end address */ -ENTRY(v4wt_coherent_user_range) +SYM_TYPED_FUNC_START(v4wt_coherent_user_range) bic r0, r0, #CACHE_DLINESIZE - 1 1: mcr p15, 0, r0, c7, c5, 1 @ invalidate I entry add r0, r0, #CACHE_DLINESIZE @@ -125,6 +131,7 @@ ENTRY(v4wt_coherent_user_range) blo 1b mov r0, #0 ret lr +SYM_FUNC_END(v4wt_coherent_user_range) /* * flush_kern_dcache_area(void *addr, size_t size) @@ -135,11 +142,12 @@ ENTRY(v4wt_coherent_user_range) * - addr - kernel address * - size - region size */ -ENTRY(v4wt_flush_kern_dcache_area) +SYM_TYPED_FUNC_START(v4wt_flush_kern_dcache_area) mov r2, #0 mcr p15, 0, r2, c7, c5, 0 @ invalidate I cache add r1, r0, r1 - /* fallthrough */ + b v4wt_dma_inv_range +SYM_FUNC_END(v4wt_flush_kern_dcache_area) /* * dma_inv_range(start, end) @@ -167,9 +175,10 @@ v4wt_dma_inv_range: * * - start - virtual start address * - end - virtual end address - */ - .globl v4wt_dma_flush_range - .equ v4wt_dma_flush_range, v4wt_dma_inv_range +*/ +SYM_TYPED_FUNC_START(v4wt_dma_flush_range) + b v4wt_dma_inv_range +SYM_FUNC_END(v4wt_dma_flush_range) /* * dma_unmap_area(start, size, dir) @@ -177,11 +186,12 @@ v4wt_dma_inv_range: * - size - size of region * - dir - DMA direction */ -ENTRY(v4wt_dma_unmap_area) +SYM_TYPED_FUNC_START(v4wt_dma_unmap_area) add r1, r1, r0 teq r2, #DMA_TO_DEVICE bne v4wt_dma_inv_range - /* FALLTHROUGH */ + ret lr +SYM_FUNC_END(v4wt_dma_unmap_area) /* * dma_map_area(start, size, dir) @@ -189,10 +199,9 @@ ENTRY(v4wt_dma_unmap_area) * - size - size of region * - dir - DMA direction */ -ENTRY(v4wt_dma_map_area) +SYM_TYPED_FUNC_START(v4wt_dma_map_area) ret lr -ENDPROC(v4wt_dma_unmap_area) -ENDPROC(v4wt_dma_map_area) +SYM_FUNC_END(v4wt_dma_map_area) .globl v4wt_flush_kern_cache_louis .equ v4wt_flush_kern_cache_louis, v4wt_flush_kern_cache_all diff --git a/arch/arm/mm/cache-v6.S b/arch/arm/mm/cache-v6.S index 44211d8a296f..5c7549a49db5 100644 --- a/arch/arm/mm/cache-v6.S +++ b/arch/arm/mm/cache-v6.S @@ -8,6 +8,7 @@ */ #include #include +#include #include #include #include @@ -34,7 +35,7 @@ * r0 - set to 0 * r1 - corrupted */ -ENTRY(v6_flush_icache_all) +SYM_TYPED_FUNC_START(v6_flush_icache_all) mov r0, #0 #ifdef CONFIG_ARM_ERRATA_411920 mrs r1, cpsr @@ -51,7 +52,7 @@ ENTRY(v6_flush_icache_all) mcr p15, 0, r0, c7, c5, 0 @ invalidate I-cache #endif ret lr -ENDPROC(v6_flush_icache_all) +SYM_FUNC_END(v6_flush_icache_all) /* * v6_flush_cache_all() @@ -60,7 +61,7 @@ ENDPROC(v6_flush_icache_all) * * It is assumed that: */ -ENTRY(v6_flush_kern_cache_all) +SYM_TYPED_FUNC_START(v6_flush_kern_cache_all) mov r0, #0 #ifdef HARVARD_CACHE mcr p15, 0, r0, c7, c14, 0 @ D cache clean+invalidate @@ -73,6 +74,7 @@ ENTRY(v6_flush_kern_cache_all) mcr p15, 0, r0, c7, c15, 0 @ Cache clean+invalidate #endif ret lr +SYM_FUNC_END(v6_flush_kern_cache_all) /* * v6_flush_cache_all() @@ -81,8 +83,9 @@ ENTRY(v6_flush_kern_cache_all) * * - mm - mm_struct describing address space */ -ENTRY(v6_flush_user_cache_all) - /*FALLTHROUGH*/ +SYM_TYPED_FUNC_START(v6_flush_user_cache_all) + ret lr +SYM_FUNC_END(v6_flush_user_cache_all) /* * v6_flush_cache_range(start, end, flags) @@ -96,8 +99,9 @@ ENTRY(v6_flush_user_cache_all) * It is assumed that: * - we have a VIPT cache. */ -ENTRY(v6_flush_user_cache_range) +SYM_TYPED_FUNC_START(v6_flush_user_cache_range) ret lr +SYM_FUNC_END(v6_flush_user_cache_range) /* * v6_coherent_kern_range(start,end) @@ -112,8 +116,9 @@ ENTRY(v6_flush_user_cache_range) * It is assumed that: * - the Icache does not read data from the write buffer */ -ENTRY(v6_coherent_kern_range) - /* FALLTHROUGH */ +SYM_TYPED_FUNC_START(v6_coherent_kern_range) + b v6_coherent_user_range +SYM_FUNC_END(v6_coherent_kern_range) /* * v6_coherent_user_range(start,end) @@ -128,7 +133,7 @@ ENTRY(v6_coherent_kern_range) * It is assumed that: * - the Icache does not read data from the write buffer */ -ENTRY(v6_coherent_user_range) +SYM_TYPED_FUNC_START(v6_coherent_user_range) UNWIND(.fnstart ) #ifdef HARVARD_CACHE bic r0, r0, #CACHE_LINE_SIZE - 1 @@ -159,8 +164,7 @@ ENTRY(v6_coherent_user_range) mov r0, #-EFAULT ret lr UNWIND(.fnend ) -ENDPROC(v6_coherent_user_range) -ENDPROC(v6_coherent_kern_range) +SYM_FUNC_END(v6_coherent_user_range) /* * v6_flush_kern_dcache_area(void *addr, size_t size) @@ -171,7 +175,7 @@ ENDPROC(v6_coherent_kern_range) * - addr - kernel address * - size - region size */ -ENTRY(v6_flush_kern_dcache_area) +SYM_TYPED_FUNC_START(v6_flush_kern_dcache_area) add r1, r0, r1 bic r0, r0, #D_CACHE_LINE_SIZE - 1 1: @@ -188,7 +192,7 @@ ENTRY(v6_flush_kern_dcache_area) mcr p15, 0, r0, c7, c10, 4 #endif ret lr - +SYM_FUNC_END(v6_flush_kern_dcache_area) /* * v6_dma_inv_range(start,end) @@ -253,7 +257,7 @@ v6_dma_clean_range: * - start - virtual start address of region * - end - virtual end address of region */ -ENTRY(v6_dma_flush_range) +SYM_TYPED_FUNC_START(v6_dma_flush_range) bic r0, r0, #D_CACHE_LINE_SIZE - 1 1: #ifdef HARVARD_CACHE @@ -267,6 +271,7 @@ ENTRY(v6_dma_flush_range) mov r0, #0 mcr p15, 0, r0, c7, c10, 4 @ drain write buffer ret lr +SYM_FUNC_END(v6_dma_flush_range) /* * dma_map_area(start, size, dir) @@ -274,12 +279,12 @@ ENTRY(v6_dma_flush_range) * - size - size of region * - dir - DMA direction */ -ENTRY(v6_dma_map_area) +SYM_TYPED_FUNC_START(v6_dma_map_area) add r1, r1, r0 teq r2, #DMA_FROM_DEVICE beq v6_dma_inv_range b v6_dma_clean_range -ENDPROC(v6_dma_map_area) +SYM_FUNC_END(v6_dma_map_area) /* * dma_unmap_area(start, size, dir) @@ -287,12 +292,12 @@ ENDPROC(v6_dma_map_area) * - size - size of region * - dir - DMA direction */ -ENTRY(v6_dma_unmap_area) +SYM_TYPED_FUNC_START(v6_dma_unmap_area) add r1, r1, r0 teq r2, #DMA_TO_DEVICE bne v6_dma_inv_range ret lr -ENDPROC(v6_dma_unmap_area) +SYM_FUNC_END(v6_dma_unmap_area) .globl v6_flush_kern_cache_louis .equ v6_flush_kern_cache_louis, v6_flush_kern_cache_all diff --git a/arch/arm/mm/cache-v7.S b/arch/arm/mm/cache-v7.S index 127afe2096ba..5908dd54de47 100644 --- a/arch/arm/mm/cache-v7.S +++ b/arch/arm/mm/cache-v7.S @@ -9,6 +9,7 @@ */ #include #include +#include #include #include #include @@ -80,12 +81,12 @@ ENDPROC(v7_invalidate_l1) * Registers: * r0 - set to 0 */ -ENTRY(v7_flush_icache_all) +SYM_TYPED_FUNC_START(v7_flush_icache_all) mov r0, #0 ALT_SMP(mcr p15, 0, r0, c7, c1, 0) @ invalidate I-cache inner shareable ALT_UP(mcr p15, 0, r0, c7, c5, 0) @ I+BTB cache invalidate ret lr -ENDPROC(v7_flush_icache_all) +SYM_FUNC_END(v7_flush_icache_all) /* * v7_flush_dcache_louis() @@ -193,7 +194,7 @@ ENDPROC(v7_flush_dcache_all) * unification in a single instruction. * */ -ENTRY(v7_flush_kern_cache_all) +SYM_TYPED_FUNC_START(v7_flush_kern_cache_all) stmfd sp!, {r4-r6, r9-r10, lr} bl v7_flush_dcache_all mov r0, #0 @@ -201,7 +202,7 @@ ENTRY(v7_flush_kern_cache_all) ALT_UP(mcr p15, 0, r0, c7, c5, 0) @ I+BTB cache invalidate ldmfd sp!, {r4-r6, r9-r10, lr} ret lr -ENDPROC(v7_flush_kern_cache_all) +SYM_FUNC_END(v7_flush_kern_cache_all) /* * v7_flush_kern_cache_louis(void) @@ -209,7 +210,7 @@ ENDPROC(v7_flush_kern_cache_all) * Flush the data cache up to Level of Unification Inner Shareable. * Invalidate the I-cache to the point of unification. */ -ENTRY(v7_flush_kern_cache_louis) +SYM_TYPED_FUNC_START(v7_flush_kern_cache_louis) stmfd sp!, {r4-r6, r9-r10, lr} bl v7_flush_dcache_louis mov r0, #0 @@ -217,7 +218,7 @@ ENTRY(v7_flush_kern_cache_louis) ALT_UP(mcr p15, 0, r0, c7, c5, 0) @ I+BTB cache invalidate ldmfd sp!, {r4-r6, r9-r10, lr} ret lr -ENDPROC(v7_flush_kern_cache_louis) +SYM_FUNC_END(v7_flush_kern_cache_louis) /* * v7_flush_cache_all() @@ -226,8 +227,9 @@ ENDPROC(v7_flush_kern_cache_louis) * * - mm - mm_struct describing address space */ -ENTRY(v7_flush_user_cache_all) - /*FALLTHROUGH*/ +SYM_TYPED_FUNC_START(v7_flush_user_cache_all) + ret lr +SYM_FUNC_END(v7_flush_user_cache_all) /* * v7_flush_cache_range(start, end, flags) @@ -241,10 +243,9 @@ ENTRY(v7_flush_user_cache_all) * It is assumed that: * - we have a VIPT cache. */ -ENTRY(v7_flush_user_cache_range) +SYM_TYPED_FUNC_START(v7_flush_user_cache_range) ret lr -ENDPROC(v7_flush_user_cache_all) -ENDPROC(v7_flush_user_cache_range) +SYM_FUNC_END(v7_flush_user_cache_range) /* * v7_coherent_kern_range(start,end) @@ -259,8 +260,9 @@ ENDPROC(v7_flush_user_cache_range) * It is assumed that: * - the Icache does not read data from the write buffer */ -ENTRY(v7_coherent_kern_range) - /* FALLTHROUGH */ +SYM_TYPED_FUNC_START(v7_coherent_kern_range) + b v7_coherent_user_range +SYM_FUNC_END(v7_coherent_kern_range) /* * v7_coherent_user_range(start,end) @@ -275,7 +277,7 @@ ENTRY(v7_coherent_kern_range) * It is assumed that: * - the Icache does not read data from the write buffer */ -ENTRY(v7_coherent_user_range) +SYM_TYPED_FUNC_START(v7_coherent_user_range) UNWIND(.fnstart ) dcache_line_size r2, r3 sub r3, r2, #1 @@ -321,8 +323,7 @@ ENTRY(v7_coherent_user_range) mov r0, #-EFAULT ret lr UNWIND(.fnend ) -ENDPROC(v7_coherent_kern_range) -ENDPROC(v7_coherent_user_range) +SYM_FUNC_END(v7_coherent_user_range) /* * v7_flush_kern_dcache_area(void *addr, size_t size) @@ -333,7 +334,7 @@ ENDPROC(v7_coherent_user_range) * - addr - kernel address * - size - region size */ -ENTRY(v7_flush_kern_dcache_area) +SYM_TYPED_FUNC_START(v7_flush_kern_dcache_area) dcache_line_size r2, r3 add r1, r0, r1 sub r3, r2, #1 @@ -349,7 +350,7 @@ ENTRY(v7_flush_kern_dcache_area) blo 1b dsb st ret lr -ENDPROC(v7_flush_kern_dcache_area) +SYM_FUNC_END(v7_flush_kern_dcache_area) /* * v7_dma_inv_range(start,end) @@ -413,7 +414,7 @@ ENDPROC(v7_dma_clean_range) * - start - virtual start address of region * - end - virtual end address of region */ -ENTRY(v7_dma_flush_range) +SYM_TYPED_FUNC_START(v7_dma_flush_range) dcache_line_size r2, r3 sub r3, r2, #1 bic r0, r0, r3 @@ -428,7 +429,7 @@ ENTRY(v7_dma_flush_range) blo 1b dsb st ret lr -ENDPROC(v7_dma_flush_range) +SYM_FUNC_END(v7_dma_flush_range) /* * dma_map_area(start, size, dir) @@ -436,12 +437,12 @@ ENDPROC(v7_dma_flush_range) * - size - size of region * - dir - DMA direction */ -ENTRY(v7_dma_map_area) +SYM_TYPED_FUNC_START(v7_dma_map_area) add r1, r1, r0 teq r2, #DMA_FROM_DEVICE beq v7_dma_inv_range b v7_dma_clean_range -ENDPROC(v7_dma_map_area) +SYM_FUNC_END(v7_dma_map_area) /* * dma_unmap_area(start, size, dir) @@ -449,12 +450,12 @@ ENDPROC(v7_dma_map_area) * - size - size of region * - dir - DMA direction */ -ENTRY(v7_dma_unmap_area) +SYM_TYPED_FUNC_START(v7_dma_unmap_area) add r1, r1, r0 teq r2, #DMA_TO_DEVICE bne v7_dma_inv_range ret lr -ENDPROC(v7_dma_unmap_area) +SYM_FUNC_END(v7_dma_unmap_area) __INITDATA diff --git a/arch/arm/mm/cache-v7m.S b/arch/arm/mm/cache-v7m.S index eb60b5e5e2ad..5a62b9a224e1 100644 --- a/arch/arm/mm/cache-v7m.S +++ b/arch/arm/mm/cache-v7m.S @@ -11,6 +11,7 @@ */ #include #include +#include #include #include #include @@ -159,10 +160,10 @@ ENDPROC(v7m_invalidate_l1) * Registers: * r0 - set to 0 */ -ENTRY(v7m_flush_icache_all) +SYM_TYPED_FUNC_START(v7m_flush_icache_all) invalidate_icache r0 ret lr -ENDPROC(v7m_flush_icache_all) +SYM_FUNC_END(v7m_flush_icache_all) /* * v7m_flush_dcache_all() @@ -236,13 +237,13 @@ ENDPROC(v7m_flush_dcache_all) * unification in a single instruction. * */ -ENTRY(v7m_flush_kern_cache_all) +SYM_TYPED_FUNC_START(v7m_flush_kern_cache_all) stmfd sp!, {r4-r7, r9-r11, lr} bl v7m_flush_dcache_all invalidate_icache r0 ldmfd sp!, {r4-r7, r9-r11, lr} ret lr -ENDPROC(v7m_flush_kern_cache_all) +SYM_FUNC_END(v7m_flush_kern_cache_all) /* * v7m_flush_cache_all() @@ -251,8 +252,9 @@ ENDPROC(v7m_flush_kern_cache_all) * * - mm - mm_struct describing address space */ -ENTRY(v7m_flush_user_cache_all) - /*FALLTHROUGH*/ +SYM_TYPED_FUNC_START(v7m_flush_user_cache_all) + ret lr +SYM_FUNC_END(v7m_flush_user_cache_all) /* * v7m_flush_cache_range(start, end, flags) @@ -266,10 +268,9 @@ ENTRY(v7m_flush_user_cache_all) * It is assumed that: * - we have a VIPT cache. */ -ENTRY(v7m_flush_user_cache_range) +SYM_TYPED_FUNC_START(v7m_flush_user_cache_range) ret lr -ENDPROC(v7m_flush_user_cache_all) -ENDPROC(v7m_flush_user_cache_range) +SYM_FUNC_END(v7m_flush_user_cache_range) /* * v7m_coherent_kern_range(start,end) @@ -284,8 +285,9 @@ ENDPROC(v7m_flush_user_cache_range) * It is assumed that: * - the Icache does not read data from the write buffer */ -ENTRY(v7m_coherent_kern_range) - /* FALLTHROUGH */ +SYM_TYPED_FUNC_START(v7m_coherent_kern_range) + b v7m_coherent_user_range +SYM_FUNC_END(v7m_coherent_kern_range) /* * v7m_coherent_user_range(start,end) @@ -300,7 +302,7 @@ ENTRY(v7m_coherent_kern_range) * It is assumed that: * - the Icache does not read data from the write buffer */ -ENTRY(v7m_coherent_user_range) +SYM_TYPED_FUNC_START(v7m_coherent_user_range) UNWIND(.fnstart ) dcache_line_size r2, r3 sub r3, r2, #1 @@ -328,8 +330,7 @@ ENTRY(v7m_coherent_user_range) isb ret lr UNWIND(.fnend ) -ENDPROC(v7m_coherent_kern_range) -ENDPROC(v7m_coherent_user_range) +SYM_FUNC_END(v7m_coherent_user_range) /* * v7m_flush_kern_dcache_area(void *addr, size_t size) @@ -340,7 +341,7 @@ ENDPROC(v7m_coherent_user_range) * - addr - kernel address * - size - region size */ -ENTRY(v7m_flush_kern_dcache_area) +SYM_TYPED_FUNC_START(v7m_flush_kern_dcache_area) dcache_line_size r2, r3 add r1, r0, r1 sub r3, r2, #1 @@ -352,7 +353,7 @@ ENTRY(v7m_flush_kern_dcache_area) blo 1b dsb st ret lr -ENDPROC(v7m_flush_kern_dcache_area) +SYM_FUNC_END(v7m_flush_kern_dcache_area) /* * v7m_dma_inv_range(start,end) @@ -408,7 +409,7 @@ ENDPROC(v7m_dma_clean_range) * - start - virtual start address of region * - end - virtual end address of region */ -ENTRY(v7m_dma_flush_range) +SYM_TYPED_FUNC_START(v7m_dma_flush_range) dcache_line_size r2, r3 sub r3, r2, #1 bic r0, r0, r3 @@ -419,7 +420,7 @@ ENTRY(v7m_dma_flush_range) blo 1b dsb st ret lr -ENDPROC(v7m_dma_flush_range) +SYM_FUNC_END(v7m_dma_flush_range) /* * dma_map_area(start, size, dir) @@ -427,12 +428,12 @@ ENDPROC(v7m_dma_flush_range) * - size - size of region * - dir - DMA direction */ -ENTRY(v7m_dma_map_area) +SYM_TYPED_FUNC_START(v7m_dma_map_area) add r1, r1, r0 teq r2, #DMA_FROM_DEVICE beq v7m_dma_inv_range b v7m_dma_clean_range -ENDPROC(v7m_dma_map_area) +SYM_FUNC_END(v7m_dma_map_area) /* * dma_unmap_area(start, size, dir) @@ -440,12 +441,12 @@ ENDPROC(v7m_dma_map_area) * - size - size of region * - dir - DMA direction */ -ENTRY(v7m_dma_unmap_area) +SYM_TYPED_FUNC_START(v7m_dma_unmap_area) add r1, r1, r0 teq r2, #DMA_TO_DEVICE bne v7m_dma_inv_range ret lr -ENDPROC(v7m_dma_unmap_area) +SYM_FUNC_END(v7m_dma_unmap_area) .globl v7m_flush_kern_cache_louis .equ v7m_flush_kern_cache_louis, v7m_flush_kern_cache_all diff --git a/arch/arm/mm/proc-arm1020.S b/arch/arm/mm/proc-arm1020.S index 6837cf7a4812..a3f99e1c1186 100644 --- a/arch/arm/mm/proc-arm1020.S +++ b/arch/arm/mm/proc-arm1020.S @@ -11,6 +11,7 @@ */ #include #include +#include #include #include #include @@ -112,13 +113,13 @@ ENTRY(cpu_arm1020_do_idle) * * Unconditionally clean and invalidate the entire icache. */ -ENTRY(arm1020_flush_icache_all) +SYM_TYPED_FUNC_START(arm1020_flush_icache_all) #ifndef CONFIG_CPU_ICACHE_DISABLE mov r0, #0 mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache #endif ret lr -ENDPROC(arm1020_flush_icache_all) +SYM_FUNC_END(arm1020_flush_icache_all) /* * flush_user_cache_all() @@ -126,14 +127,16 @@ ENDPROC(arm1020_flush_icache_all) * Invalidate all cache entries in a particular address * space. */ -ENTRY(arm1020_flush_user_cache_all) - /* FALLTHROUGH */ +SYM_TYPED_FUNC_START(arm1020_flush_user_cache_all) + b arm1020_flush_kern_cache_all +SYM_FUNC_END(arm1020_flush_user_cache_all) + /* * flush_kern_cache_all() * * Clean and invalidate the entire cache. */ -ENTRY(arm1020_flush_kern_cache_all) +SYM_TYPED_FUNC_START(arm1020_flush_kern_cache_all) mov r2, #VM_EXEC mov ip, #0 __flush_whole_cache: @@ -154,6 +157,7 @@ __flush_whole_cache: #endif mcrne p15, 0, ip, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm1020_flush_kern_cache_all) /* * flush_user_cache_range(start, end, flags) @@ -165,7 +169,7 @@ __flush_whole_cache: * - end - end address (exclusive) * - flags - vm_flags for this space */ -ENTRY(arm1020_flush_user_cache_range) +SYM_TYPED_FUNC_START(arm1020_flush_user_cache_range) mov ip, #0 sub r3, r1, r0 @ calculate total size cmp r3, #CACHE_DLIMIT @@ -185,6 +189,7 @@ ENTRY(arm1020_flush_user_cache_range) #endif mcrne p15, 0, ip, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm1020_flush_user_cache_range) /* * coherent_kern_range(start, end) @@ -196,8 +201,9 @@ ENTRY(arm1020_flush_user_cache_range) * - start - virtual start address * - end - virtual end address */ -ENTRY(arm1020_coherent_kern_range) - /* FALLTRHOUGH */ +SYM_TYPED_FUNC_START(arm1020_coherent_kern_range) + b arm1020_coherent_user_range +SYM_FUNC_END(arm1020_coherent_kern_range) /* * coherent_user_range(start, end) @@ -209,7 +215,7 @@ ENTRY(arm1020_coherent_kern_range) * - start - virtual start address * - end - virtual end address */ -ENTRY(arm1020_coherent_user_range) +SYM_TYPED_FUNC_START(arm1020_coherent_user_range) mov ip, #0 bic r0, r0, #CACHE_DLINESIZE - 1 mcr p15, 0, ip, c7, c10, 4 @@ -227,6 +233,7 @@ ENTRY(arm1020_coherent_user_range) mcr p15, 0, ip, c7, c10, 4 @ drain WB mov r0, #0 ret lr +SYM_FUNC_END(arm1020_coherent_user_range) /* * flush_kern_dcache_area(void *addr, size_t size) @@ -237,7 +244,7 @@ ENTRY(arm1020_coherent_user_range) * - addr - kernel address * - size - region size */ -ENTRY(arm1020_flush_kern_dcache_area) +SYM_TYPED_FUNC_START(arm1020_flush_kern_dcache_area) mov ip, #0 #ifndef CONFIG_CPU_DCACHE_DISABLE add r1, r0, r1 @@ -249,6 +256,7 @@ ENTRY(arm1020_flush_kern_dcache_area) #endif mcr p15, 0, ip, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm1020_flush_kern_dcache_area) /* * dma_inv_range(start, end) @@ -314,7 +322,7 @@ arm1020_dma_clean_range: * - start - virtual start address * - end - virtual end address */ -ENTRY(arm1020_dma_flush_range) +SYM_TYPED_FUNC_START(arm1020_dma_flush_range) mov ip, #0 #ifndef CONFIG_CPU_DCACHE_DISABLE bic r0, r0, #CACHE_DLINESIZE - 1 @@ -327,6 +335,7 @@ ENTRY(arm1020_dma_flush_range) #endif mcr p15, 0, ip, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm1020_dma_flush_range) /* * dma_map_area(start, size, dir) @@ -334,13 +343,13 @@ ENTRY(arm1020_dma_flush_range) * - size - size of region * - dir - DMA direction */ -ENTRY(arm1020_dma_map_area) +SYM_TYPED_FUNC_START(arm1020_dma_map_area) add r1, r1, r0 cmp r2, #DMA_TO_DEVICE beq arm1020_dma_clean_range bcs arm1020_dma_inv_range b arm1020_dma_flush_range -ENDPROC(arm1020_dma_map_area) +SYM_FUNC_END(arm1020_dma_map_area) /* * dma_unmap_area(start, size, dir) @@ -348,9 +357,9 @@ ENDPROC(arm1020_dma_map_area) * - size - size of region * - dir - DMA direction */ -ENTRY(arm1020_dma_unmap_area) +SYM_TYPED_FUNC_START(arm1020_dma_unmap_area) ret lr -ENDPROC(arm1020_dma_unmap_area) +SYM_FUNC_END(arm1020_dma_unmap_area) .globl arm1020_flush_kern_cache_louis .equ arm1020_flush_kern_cache_louis, arm1020_flush_kern_cache_all diff --git a/arch/arm/mm/proc-arm1020e.S b/arch/arm/mm/proc-arm1020e.S index df49b10250b8..64c63eb5d830 100644 --- a/arch/arm/mm/proc-arm1020e.S +++ b/arch/arm/mm/proc-arm1020e.S @@ -11,6 +11,7 @@ */ #include #include +#include #include #include #include @@ -112,13 +113,13 @@ ENTRY(cpu_arm1020e_do_idle) * * Unconditionally clean and invalidate the entire icache. */ -ENTRY(arm1020e_flush_icache_all) +SYM_TYPED_FUNC_START(arm1020e_flush_icache_all) #ifndef CONFIG_CPU_ICACHE_DISABLE mov r0, #0 mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache #endif ret lr -ENDPROC(arm1020e_flush_icache_all) +SYM_FUNC_END(arm1020e_flush_icache_all) /* * flush_user_cache_all() @@ -126,14 +127,16 @@ ENDPROC(arm1020e_flush_icache_all) * Invalidate all cache entries in a particular address * space. */ -ENTRY(arm1020e_flush_user_cache_all) - /* FALLTHROUGH */ +SYM_TYPED_FUNC_START(arm1020e_flush_user_cache_all) + b arm1020e_flush_kern_cache_all +SYM_FUNC_END(arm1020e_flush_user_cache_all) + /* * flush_kern_cache_all() * * Clean and invalidate the entire cache. */ -ENTRY(arm1020e_flush_kern_cache_all) +SYM_TYPED_FUNC_START(arm1020e_flush_kern_cache_all) mov r2, #VM_EXEC mov ip, #0 __flush_whole_cache: @@ -153,6 +156,7 @@ __flush_whole_cache: #endif mcrne p15, 0, ip, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm1020e_flush_kern_cache_all) /* * flush_user_cache_range(start, end, flags) @@ -164,7 +168,7 @@ __flush_whole_cache: * - end - end address (exclusive) * - flags - vm_flags for this space */ -ENTRY(arm1020e_flush_user_cache_range) +SYM_TYPED_FUNC_START(arm1020e_flush_user_cache_range) mov ip, #0 sub r3, r1, r0 @ calculate total size cmp r3, #CACHE_DLIMIT @@ -182,6 +186,7 @@ ENTRY(arm1020e_flush_user_cache_range) #endif mcrne p15, 0, ip, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm1020e_flush_user_cache_range) /* * coherent_kern_range(start, end) @@ -193,8 +198,10 @@ ENTRY(arm1020e_flush_user_cache_range) * - start - virtual start address * - end - virtual end address */ -ENTRY(arm1020e_coherent_kern_range) - /* FALLTHROUGH */ +SYM_TYPED_FUNC_START(arm1020e_coherent_kern_range) + b arm1020e_coherent_user_range +SYM_FUNC_END(arm1020e_coherent_kern_range) + /* * coherent_user_range(start, end) * @@ -205,7 +212,7 @@ ENTRY(arm1020e_coherent_kern_range) * - start - virtual start address * - end - virtual end address */ -ENTRY(arm1020e_coherent_user_range) +SYM_TYPED_FUNC_START(arm1020e_coherent_user_range) mov ip, #0 bic r0, r0, #CACHE_DLINESIZE - 1 1: @@ -221,6 +228,7 @@ ENTRY(arm1020e_coherent_user_range) mcr p15, 0, ip, c7, c10, 4 @ drain WB mov r0, #0 ret lr +SYM_FUNC_END(arm1020e_coherent_user_range) /* * flush_kern_dcache_area(void *addr, size_t size) @@ -231,7 +239,7 @@ ENTRY(arm1020e_coherent_user_range) * - addr - kernel address * - size - region size */ -ENTRY(arm1020e_flush_kern_dcache_area) +SYM_TYPED_FUNC_START(arm1020e_flush_kern_dcache_area) mov ip, #0 #ifndef CONFIG_CPU_DCACHE_DISABLE add r1, r0, r1 @@ -242,6 +250,7 @@ ENTRY(arm1020e_flush_kern_dcache_area) #endif mcr p15, 0, ip, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm1020e_flush_kern_dcache_area) /* * dma_inv_range(start, end) @@ -302,7 +311,7 @@ arm1020e_dma_clean_range: * - start - virtual start address * - end - virtual end address */ -ENTRY(arm1020e_dma_flush_range) +SYM_TYPED_FUNC_START(arm1020e_dma_flush_range) mov ip, #0 #ifndef CONFIG_CPU_DCACHE_DISABLE bic r0, r0, #CACHE_DLINESIZE - 1 @@ -313,6 +322,7 @@ ENTRY(arm1020e_dma_flush_range) #endif mcr p15, 0, ip, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm1020e_dma_flush_range) /* * dma_map_area(start, size, dir) @@ -320,13 +330,13 @@ ENTRY(arm1020e_dma_flush_range) * - size - size of region * - dir - DMA direction */ -ENTRY(arm1020e_dma_map_area) +SYM_TYPED_FUNC_START(arm1020e_dma_map_area) add r1, r1, r0 cmp r2, #DMA_TO_DEVICE beq arm1020e_dma_clean_range bcs arm1020e_dma_inv_range b arm1020e_dma_flush_range -ENDPROC(arm1020e_dma_map_area) +SYM_FUNC_END(arm1020e_dma_map_area) /* * dma_unmap_area(start, size, dir) @@ -334,9 +344,9 @@ ENDPROC(arm1020e_dma_map_area) * - size - size of region * - dir - DMA direction */ -ENTRY(arm1020e_dma_unmap_area) +SYM_TYPED_FUNC_START(arm1020e_dma_unmap_area) ret lr -ENDPROC(arm1020e_dma_unmap_area) +SYM_FUNC_END(arm1020e_dma_unmap_area) .globl arm1020e_flush_kern_cache_louis .equ arm1020e_flush_kern_cache_louis, arm1020e_flush_kern_cache_all diff --git a/arch/arm/mm/proc-arm1022.S b/arch/arm/mm/proc-arm1022.S index e89ce467f672..e170497353ae 100644 --- a/arch/arm/mm/proc-arm1022.S +++ b/arch/arm/mm/proc-arm1022.S @@ -11,6 +11,7 @@ */ #include #include +#include #include #include #include @@ -112,13 +113,13 @@ ENTRY(cpu_arm1022_do_idle) * * Unconditionally clean and invalidate the entire icache. */ -ENTRY(arm1022_flush_icache_all) +SYM_TYPED_FUNC_START(arm1022_flush_icache_all) #ifndef CONFIG_CPU_ICACHE_DISABLE mov r0, #0 mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache #endif ret lr -ENDPROC(arm1022_flush_icache_all) +SYM_FUNC_END(arm1022_flush_icache_all) /* * flush_user_cache_all() @@ -126,14 +127,16 @@ ENDPROC(arm1022_flush_icache_all) * Invalidate all cache entries in a particular address * space. */ -ENTRY(arm1022_flush_user_cache_all) - /* FALLTHROUGH */ +SYM_TYPED_FUNC_START(arm1022_flush_user_cache_all) + b arm1022_flush_kern_cache_all +SYM_FUNC_END(arm1022_flush_user_cache_all) + /* * flush_kern_cache_all() * * Clean and invalidate the entire cache. */ -ENTRY(arm1022_flush_kern_cache_all) +SYM_TYPED_FUNC_START(arm1022_flush_kern_cache_all) mov r2, #VM_EXEC mov ip, #0 __flush_whole_cache: @@ -152,6 +155,7 @@ __flush_whole_cache: #endif mcrne p15, 0, ip, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm1022_flush_kern_cache_all) /* * flush_user_cache_range(start, end, flags) @@ -163,7 +167,7 @@ __flush_whole_cache: * - end - end address (exclusive) * - flags - vm_flags for this space */ -ENTRY(arm1022_flush_user_cache_range) +SYM_TYPED_FUNC_START(arm1022_flush_user_cache_range) mov ip, #0 sub r3, r1, r0 @ calculate total size cmp r3, #CACHE_DLIMIT @@ -181,6 +185,7 @@ ENTRY(arm1022_flush_user_cache_range) #endif mcrne p15, 0, ip, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm1022_flush_user_cache_range) /* * coherent_kern_range(start, end) @@ -192,8 +197,9 @@ ENTRY(arm1022_flush_user_cache_range) * - start - virtual start address * - end - virtual end address */ -ENTRY(arm1022_coherent_kern_range) - /* FALLTHROUGH */ +SYM_TYPED_FUNC_START(arm1022_coherent_kern_range) + b arm1022_coherent_user_range +SYM_FUNC_END(arm1022_coherent_kern_range) /* * coherent_user_range(start, end) @@ -205,7 +211,7 @@ ENTRY(arm1022_coherent_kern_range) * - start - virtual start address * - end - virtual end address */ -ENTRY(arm1022_coherent_user_range) +SYM_TYPED_FUNC_START(arm1022_coherent_user_range) mov ip, #0 bic r0, r0, #CACHE_DLINESIZE - 1 1: @@ -221,6 +227,7 @@ ENTRY(arm1022_coherent_user_range) mcr p15, 0, ip, c7, c10, 4 @ drain WB mov r0, #0 ret lr +SYM_FUNC_END(arm1022_coherent_user_range) /* * flush_kern_dcache_area(void *addr, size_t size) @@ -231,7 +238,7 @@ ENTRY(arm1022_coherent_user_range) * - addr - kernel address * - size - region size */ -ENTRY(arm1022_flush_kern_dcache_area) +SYM_TYPED_FUNC_START(arm1022_flush_kern_dcache_area) mov ip, #0 #ifndef CONFIG_CPU_DCACHE_DISABLE add r1, r0, r1 @@ -242,6 +249,7 @@ ENTRY(arm1022_flush_kern_dcache_area) #endif mcr p15, 0, ip, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm1022_flush_kern_dcache_area) /* * dma_inv_range(start, end) @@ -302,7 +310,7 @@ arm1022_dma_clean_range: * - start - virtual start address * - end - virtual end address */ -ENTRY(arm1022_dma_flush_range) +SYM_TYPED_FUNC_START(arm1022_dma_flush_range) mov ip, #0 #ifndef CONFIG_CPU_DCACHE_DISABLE bic r0, r0, #CACHE_DLINESIZE - 1 @@ -313,6 +321,7 @@ ENTRY(arm1022_dma_flush_range) #endif mcr p15, 0, ip, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm1022_dma_flush_range) /* * dma_map_area(start, size, dir) @@ -320,13 +329,13 @@ ENTRY(arm1022_dma_flush_range) * - size - size of region * - dir - DMA direction */ -ENTRY(arm1022_dma_map_area) +SYM_TYPED_FUNC_START(arm1022_dma_map_area) add r1, r1, r0 cmp r2, #DMA_TO_DEVICE beq arm1022_dma_clean_range bcs arm1022_dma_inv_range b arm1022_dma_flush_range -ENDPROC(arm1022_dma_map_area) +SYM_FUNC_END(arm1022_dma_map_area) /* * dma_unmap_area(start, size, dir) @@ -334,9 +343,9 @@ ENDPROC(arm1022_dma_map_area) * - size - size of region * - dir - DMA direction */ -ENTRY(arm1022_dma_unmap_area) +SYM_TYPED_FUNC_START(arm1022_dma_unmap_area) ret lr -ENDPROC(arm1022_dma_unmap_area) +SYM_FUNC_END(arm1022_dma_unmap_area) .globl arm1022_flush_kern_cache_louis .equ arm1022_flush_kern_cache_louis, arm1022_flush_kern_cache_all diff --git a/arch/arm/mm/proc-arm1026.S b/arch/arm/mm/proc-arm1026.S index 7fdd1a205e8e..4b5a4849ad85 100644 --- a/arch/arm/mm/proc-arm1026.S +++ b/arch/arm/mm/proc-arm1026.S @@ -11,6 +11,7 @@ */ #include #include +#include #include #include #include @@ -112,13 +113,13 @@ ENTRY(cpu_arm1026_do_idle) * * Unconditionally clean and invalidate the entire icache. */ -ENTRY(arm1026_flush_icache_all) +SYM_TYPED_FUNC_START(arm1026_flush_icache_all) #ifndef CONFIG_CPU_ICACHE_DISABLE mov r0, #0 mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache #endif ret lr -ENDPROC(arm1026_flush_icache_all) +SYM_FUNC_END(arm1026_flush_icache_all) /* * flush_user_cache_all() @@ -126,14 +127,16 @@ ENDPROC(arm1026_flush_icache_all) * Invalidate all cache entries in a particular address * space. */ -ENTRY(arm1026_flush_user_cache_all) - /* FALLTHROUGH */ +SYM_TYPED_FUNC_START(arm1026_flush_user_cache_all) + b arm1026_flush_kern_cache_all +SYM_FUNC_END(arm1026_flush_user_cache_all) + /* * flush_kern_cache_all() * * Clean and invalidate the entire cache. */ -ENTRY(arm1026_flush_kern_cache_all) +SYM_TYPED_FUNC_START(arm1026_flush_kern_cache_all) mov r2, #VM_EXEC mov ip, #0 __flush_whole_cache: @@ -147,6 +150,7 @@ __flush_whole_cache: #endif mcrne p15, 0, ip, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm1026_flush_kern_cache_all) /* * flush_user_cache_range(start, end, flags) @@ -158,7 +162,7 @@ __flush_whole_cache: * - end - end address (exclusive) * - flags - vm_flags for this space */ -ENTRY(arm1026_flush_user_cache_range) +SYM_TYPED_FUNC_START(arm1026_flush_user_cache_range) mov ip, #0 sub r3, r1, r0 @ calculate total size cmp r3, #CACHE_DLIMIT @@ -176,6 +180,7 @@ ENTRY(arm1026_flush_user_cache_range) #endif mcrne p15, 0, ip, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm1026_flush_user_cache_range) /* * coherent_kern_range(start, end) @@ -187,8 +192,10 @@ ENTRY(arm1026_flush_user_cache_range) * - start - virtual start address * - end - virtual end address */ -ENTRY(arm1026_coherent_kern_range) - /* FALLTHROUGH */ +SYM_TYPED_FUNC_START(arm1026_coherent_kern_range) + b arm1026_coherent_user_range +SYM_FUNC_END(arm1026_coherent_kern_range) + /* * coherent_user_range(start, end) * @@ -199,7 +206,7 @@ ENTRY(arm1026_coherent_kern_range) * - start - virtual start address * - end - virtual end address */ -ENTRY(arm1026_coherent_user_range) +SYM_TYPED_FUNC_START(arm1026_coherent_user_range) mov ip, #0 bic r0, r0, #CACHE_DLINESIZE - 1 1: @@ -215,6 +222,7 @@ ENTRY(arm1026_coherent_user_range) mcr p15, 0, ip, c7, c10, 4 @ drain WB mov r0, #0 ret lr +SYM_FUNC_END(arm1026_coherent_user_range) /* * flush_kern_dcache_area(void *addr, size_t size) @@ -225,7 +233,7 @@ ENTRY(arm1026_coherent_user_range) * - addr - kernel address * - size - region size */ -ENTRY(arm1026_flush_kern_dcache_area) +SYM_TYPED_FUNC_START(arm1026_flush_kern_dcache_area) mov ip, #0 #ifndef CONFIG_CPU_DCACHE_DISABLE add r1, r0, r1 @@ -236,6 +244,7 @@ ENTRY(arm1026_flush_kern_dcache_area) #endif mcr p15, 0, ip, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm1026_flush_kern_dcache_area) /* * dma_inv_range(start, end) @@ -296,7 +305,7 @@ arm1026_dma_clean_range: * - start - virtual start address * - end - virtual end address */ -ENTRY(arm1026_dma_flush_range) +SYM_TYPED_FUNC_START(arm1026_dma_flush_range) mov ip, #0 #ifndef CONFIG_CPU_DCACHE_DISABLE bic r0, r0, #CACHE_DLINESIZE - 1 @@ -307,6 +316,7 @@ ENTRY(arm1026_dma_flush_range) #endif mcr p15, 0, ip, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm1026_dma_flush_range) /* * dma_map_area(start, size, dir) @@ -314,13 +324,13 @@ ENTRY(arm1026_dma_flush_range) * - size - size of region * - dir - DMA direction */ -ENTRY(arm1026_dma_map_area) +SYM_TYPED_FUNC_START(arm1026_dma_map_area) add r1, r1, r0 cmp r2, #DMA_TO_DEVICE beq arm1026_dma_clean_range bcs arm1026_dma_inv_range b arm1026_dma_flush_range -ENDPROC(arm1026_dma_map_area) +SYM_FUNC_END(arm1026_dma_map_area) /* * dma_unmap_area(start, size, dir) @@ -328,9 +338,9 @@ ENDPROC(arm1026_dma_map_area) * - size - size of region * - dir - DMA direction */ -ENTRY(arm1026_dma_unmap_area) +SYM_TYPED_FUNC_START(arm1026_dma_unmap_area) ret lr -ENDPROC(arm1026_dma_unmap_area) +SYM_FUNC_END(arm1026_dma_unmap_area) .globl arm1026_flush_kern_cache_louis .equ arm1026_flush_kern_cache_louis, arm1026_flush_kern_cache_all diff --git a/arch/arm/mm/proc-arm920.S b/arch/arm/mm/proc-arm920.S index a234cd8ba5e6..fbf8937eae85 100644 --- a/arch/arm/mm/proc-arm920.S +++ b/arch/arm/mm/proc-arm920.S @@ -13,6 +13,7 @@ */ #include #include +#include #include #include #include @@ -103,11 +104,11 @@ ENTRY(cpu_arm920_do_idle) * * Unconditionally clean and invalidate the entire icache. */ -ENTRY(arm920_flush_icache_all) +SYM_TYPED_FUNC_START(arm920_flush_icache_all) mov r0, #0 mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache ret lr -ENDPROC(arm920_flush_icache_all) +SYM_FUNC_END(arm920_flush_icache_all) /* * flush_user_cache_all() @@ -115,15 +116,16 @@ ENDPROC(arm920_flush_icache_all) * Invalidate all cache entries in a particular address * space. */ -ENTRY(arm920_flush_user_cache_all) - /* FALLTHROUGH */ +SYM_TYPED_FUNC_START(arm920_flush_user_cache_all) + b arm920_flush_kern_cache_all +SYM_FUNC_END(arm920_flush_user_cache_all) /* * flush_kern_cache_all() * * Clean and invalidate the entire cache. */ -ENTRY(arm920_flush_kern_cache_all) +SYM_TYPED_FUNC_START(arm920_flush_kern_cache_all) mov r2, #VM_EXEC mov ip, #0 __flush_whole_cache: @@ -138,6 +140,7 @@ __flush_whole_cache: mcrne p15, 0, ip, c7, c5, 0 @ invalidate I cache mcrne p15, 0, ip, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm920_flush_kern_cache_all) /* * flush_user_cache_range(start, end, flags) @@ -149,7 +152,7 @@ __flush_whole_cache: * - end - end address (exclusive) * - flags - vm_flags for address space */ -ENTRY(arm920_flush_user_cache_range) +SYM_TYPED_FUNC_START(arm920_flush_user_cache_range) mov ip, #0 sub r3, r1, r0 @ calculate total size cmp r3, #CACHE_DLIMIT @@ -164,6 +167,7 @@ ENTRY(arm920_flush_user_cache_range) tst r2, #VM_EXEC mcrne p15, 0, ip, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm920_flush_user_cache_range) /* * coherent_kern_range(start, end) @@ -175,8 +179,9 @@ ENTRY(arm920_flush_user_cache_range) * - start - virtual start address * - end - virtual end address */ -ENTRY(arm920_coherent_kern_range) - /* FALLTHROUGH */ +SYM_TYPED_FUNC_START(arm920_coherent_kern_range) + b arm920_coherent_user_range +SYM_FUNC_END(arm920_coherent_kern_range) /* * coherent_user_range(start, end) @@ -188,7 +193,7 @@ ENTRY(arm920_coherent_kern_range) * - start - virtual start address * - end - virtual end address */ -ENTRY(arm920_coherent_user_range) +SYM_TYPED_FUNC_START(arm920_coherent_user_range) bic r0, r0, #CACHE_DLINESIZE - 1 1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry mcr p15, 0, r0, c7, c5, 1 @ invalidate I entry @@ -198,6 +203,7 @@ ENTRY(arm920_coherent_user_range) mcr p15, 0, r0, c7, c10, 4 @ drain WB mov r0, #0 ret lr +SYM_FUNC_END(arm920_coherent_user_range) /* * flush_kern_dcache_area(void *addr, size_t size) @@ -208,7 +214,7 @@ ENTRY(arm920_coherent_user_range) * - addr - kernel address * - size - region size */ -ENTRY(arm920_flush_kern_dcache_area) +SYM_TYPED_FUNC_START(arm920_flush_kern_dcache_area) add r1, r0, r1 1: mcr p15, 0, r0, c7, c14, 1 @ clean+invalidate D entry add r0, r0, #CACHE_DLINESIZE @@ -218,6 +224,7 @@ ENTRY(arm920_flush_kern_dcache_area) mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache mcr p15, 0, r0, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm920_flush_kern_dcache_area) /* * dma_inv_range(start, end) @@ -272,7 +279,7 @@ arm920_dma_clean_range: * - start - virtual start address * - end - virtual end address */ -ENTRY(arm920_dma_flush_range) +SYM_TYPED_FUNC_START(arm920_dma_flush_range) bic r0, r0, #CACHE_DLINESIZE - 1 1: mcr p15, 0, r0, c7, c14, 1 @ clean+invalidate D entry add r0, r0, #CACHE_DLINESIZE @@ -280,6 +287,7 @@ ENTRY(arm920_dma_flush_range) blo 1b mcr p15, 0, r0, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm920_dma_flush_range) /* * dma_map_area(start, size, dir) @@ -287,13 +295,13 @@ ENTRY(arm920_dma_flush_range) * - size - size of region * - dir - DMA direction */ -ENTRY(arm920_dma_map_area) +SYM_TYPED_FUNC_START(arm920_dma_map_area) add r1, r1, r0 cmp r2, #DMA_TO_DEVICE beq arm920_dma_clean_range bcs arm920_dma_inv_range b arm920_dma_flush_range -ENDPROC(arm920_dma_map_area) +SYM_FUNC_END(arm920_dma_map_area) /* * dma_unmap_area(start, size, dir) @@ -301,16 +309,16 @@ ENDPROC(arm920_dma_map_area) * - size - size of region * - dir - DMA direction */ -ENTRY(arm920_dma_unmap_area) +SYM_TYPED_FUNC_START(arm920_dma_unmap_area) ret lr -ENDPROC(arm920_dma_unmap_area) +SYM_FUNC_END(arm920_dma_unmap_area) .globl arm920_flush_kern_cache_louis .equ arm920_flush_kern_cache_louis, arm920_flush_kern_cache_all @ define struct cpu_cache_fns (see and proc-macros.S) define_cache_functions arm920 -#endif +#endif /* !CONFIG_CPU_DCACHE_WRITETHROUGH */ ENTRY(cpu_arm920_dcache_clean_area) diff --git a/arch/arm/mm/proc-arm922.S b/arch/arm/mm/proc-arm922.S index 53c029dcfd83..ccfff2b65f49 100644 --- a/arch/arm/mm/proc-arm922.S +++ b/arch/arm/mm/proc-arm922.S @@ -14,6 +14,7 @@ */ #include #include +#include #include #include #include @@ -105,11 +106,11 @@ ENTRY(cpu_arm922_do_idle) * * Unconditionally clean and invalidate the entire icache. */ -ENTRY(arm922_flush_icache_all) +SYM_TYPED_FUNC_START(arm922_flush_icache_all) mov r0, #0 mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache ret lr -ENDPROC(arm922_flush_icache_all) +SYM_FUNC_END(arm922_flush_icache_all) /* * flush_user_cache_all() @@ -117,15 +118,16 @@ ENDPROC(arm922_flush_icache_all) * Clean and invalidate all cache entries in a particular * address space. */ -ENTRY(arm922_flush_user_cache_all) - /* FALLTHROUGH */ +SYM_TYPED_FUNC_START(arm922_flush_user_cache_all) + b arm922_flush_kern_cache_all +SYM_FUNC_END(arm922_flush_user_cache_all) /* * flush_kern_cache_all() * * Clean and invalidate the entire cache. */ -ENTRY(arm922_flush_kern_cache_all) +SYM_TYPED_FUNC_START(arm922_flush_kern_cache_all) mov r2, #VM_EXEC mov ip, #0 __flush_whole_cache: @@ -140,6 +142,7 @@ __flush_whole_cache: mcrne p15, 0, ip, c7, c5, 0 @ invalidate I cache mcrne p15, 0, ip, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm922_flush_kern_cache_all) /* * flush_user_cache_range(start, end, flags) @@ -151,7 +154,7 @@ __flush_whole_cache: * - end - end address (exclusive) * - flags - vm_flags describing address space */ -ENTRY(arm922_flush_user_cache_range) +SYM_TYPED_FUNC_START(arm922_flush_user_cache_range) mov ip, #0 sub r3, r1, r0 @ calculate total size cmp r3, #CACHE_DLIMIT @@ -166,6 +169,7 @@ ENTRY(arm922_flush_user_cache_range) tst r2, #VM_EXEC mcrne p15, 0, ip, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm922_flush_user_cache_range) /* * coherent_kern_range(start, end) @@ -177,8 +181,9 @@ ENTRY(arm922_flush_user_cache_range) * - start - virtual start address * - end - virtual end address */ -ENTRY(arm922_coherent_kern_range) - /* FALLTHROUGH */ +SYM_TYPED_FUNC_START(arm922_coherent_kern_range) + b arm922_coherent_user_range +SYM_FUNC_END(arm922_coherent_kern_range) /* * coherent_user_range(start, end) @@ -190,7 +195,7 @@ ENTRY(arm922_coherent_kern_range) * - start - virtual start address * - end - virtual end address */ -ENTRY(arm922_coherent_user_range) +SYM_TYPED_FUNC_START(arm922_coherent_user_range) bic r0, r0, #CACHE_DLINESIZE - 1 1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry mcr p15, 0, r0, c7, c5, 1 @ invalidate I entry @@ -200,6 +205,7 @@ ENTRY(arm922_coherent_user_range) mcr p15, 0, r0, c7, c10, 4 @ drain WB mov r0, #0 ret lr +SYM_FUNC_END(arm922_coherent_user_range) /* * flush_kern_dcache_area(void *addr, size_t size) @@ -210,7 +216,7 @@ ENTRY(arm922_coherent_user_range) * - addr - kernel address * - size - region size */ -ENTRY(arm922_flush_kern_dcache_area) +SYM_TYPED_FUNC_START(arm922_flush_kern_dcache_area) add r1, r0, r1 1: mcr p15, 0, r0, c7, c14, 1 @ clean+invalidate D entry add r0, r0, #CACHE_DLINESIZE @@ -220,6 +226,7 @@ ENTRY(arm922_flush_kern_dcache_area) mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache mcr p15, 0, r0, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm922_flush_kern_dcache_area) /* * dma_inv_range(start, end) @@ -274,7 +281,7 @@ arm922_dma_clean_range: * - start - virtual start address * - end - virtual end address */ -ENTRY(arm922_dma_flush_range) +SYM_TYPED_FUNC_START(arm922_dma_flush_range) bic r0, r0, #CACHE_DLINESIZE - 1 1: mcr p15, 0, r0, c7, c14, 1 @ clean+invalidate D entry add r0, r0, #CACHE_DLINESIZE @@ -282,6 +289,7 @@ ENTRY(arm922_dma_flush_range) blo 1b mcr p15, 0, r0, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm922_dma_flush_range) /* * dma_map_area(start, size, dir) @@ -289,13 +297,13 @@ ENTRY(arm922_dma_flush_range) * - size - size of region * - dir - DMA direction */ -ENTRY(arm922_dma_map_area) +SYM_TYPED_FUNC_START(arm922_dma_map_area) add r1, r1, r0 cmp r2, #DMA_TO_DEVICE beq arm922_dma_clean_range bcs arm922_dma_inv_range b arm922_dma_flush_range -ENDPROC(arm922_dma_map_area) +SYM_FUNC_END(arm922_dma_map_area) /* * dma_unmap_area(start, size, dir) @@ -303,17 +311,17 @@ ENDPROC(arm922_dma_map_area) * - size - size of region * - dir - DMA direction */ -ENTRY(arm922_dma_unmap_area) +SYM_TYPED_FUNC_START(arm922_dma_unmap_area) ret lr -ENDPROC(arm922_dma_unmap_area) +SYM_FUNC_END(arm922_dma_unmap_area) .globl arm922_flush_kern_cache_louis .equ arm922_flush_kern_cache_louis, arm922_flush_kern_cache_all @ define struct cpu_cache_fns (see and proc-macros.S) define_cache_functions arm922 -#endif +#endif /* !CONFIG_CPU_DCACHE_WRITETHROUGH */ ENTRY(cpu_arm922_dcache_clean_area) #ifndef CONFIG_CPU_DCACHE_WRITETHROUGH diff --git a/arch/arm/mm/proc-arm925.S b/arch/arm/mm/proc-arm925.S index 0bfad62ea858..d0f73242f70a 100644 --- a/arch/arm/mm/proc-arm925.S +++ b/arch/arm/mm/proc-arm925.S @@ -37,6 +37,7 @@ #include #include +#include #include #include #include @@ -138,11 +139,11 @@ ENTRY(cpu_arm925_do_idle) * * Unconditionally clean and invalidate the entire icache. */ -ENTRY(arm925_flush_icache_all) +SYM_TYPED_FUNC_START(arm925_flush_icache_all) mov r0, #0 mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache ret lr -ENDPROC(arm925_flush_icache_all) +SYM_FUNC_END(arm925_flush_icache_all) /* * flush_user_cache_all() @@ -150,15 +151,16 @@ ENDPROC(arm925_flush_icache_all) * Clean and invalidate all cache entries in a particular * address space. */ -ENTRY(arm925_flush_user_cache_all) - /* FALLTHROUGH */ +SYM_TYPED_FUNC_START(arm925_flush_user_cache_all) + b arm925_flush_kern_cache_all +SYM_FUNC_END(arm925_flush_user_cache_all) /* * flush_kern_cache_all() * * Clean and invalidate the entire cache. */ -ENTRY(arm925_flush_kern_cache_all) +SYM_TYPED_FUNC_START(arm925_flush_kern_cache_all) mov r2, #VM_EXEC mov ip, #0 __flush_whole_cache: @@ -175,6 +177,7 @@ __flush_whole_cache: mcrne p15, 0, ip, c7, c5, 0 @ invalidate I cache mcrne p15, 0, ip, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm925_flush_kern_cache_all) /* * flush_user_cache_range(start, end, flags) @@ -186,7 +189,7 @@ __flush_whole_cache: * - end - end address (exclusive) * - flags - vm_flags describing address space */ -ENTRY(arm925_flush_user_cache_range) +SYM_TYPED_FUNC_START(arm925_flush_user_cache_range) mov ip, #0 sub r3, r1, r0 @ calculate total size cmp r3, #CACHE_DLIMIT @@ -212,6 +215,7 @@ ENTRY(arm925_flush_user_cache_range) tst r2, #VM_EXEC mcrne p15, 0, ip, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm925_flush_user_cache_range) /* * coherent_kern_range(start, end) @@ -223,8 +227,9 @@ ENTRY(arm925_flush_user_cache_range) * - start - virtual start address * - end - virtual end address */ -ENTRY(arm925_coherent_kern_range) - /* FALLTHROUGH */ +SYM_TYPED_FUNC_START(arm925_coherent_kern_range) + b arm925_coherent_user_range +SYM_FUNC_END(arm925_coherent_kern_range) /* * coherent_user_range(start, end) @@ -236,7 +241,7 @@ ENTRY(arm925_coherent_kern_range) * - start - virtual start address * - end - virtual end address */ -ENTRY(arm925_coherent_user_range) +SYM_TYPED_FUNC_START(arm925_coherent_user_range) bic r0, r0, #CACHE_DLINESIZE - 1 1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry mcr p15, 0, r0, c7, c5, 1 @ invalidate I entry @@ -246,6 +251,7 @@ ENTRY(arm925_coherent_user_range) mcr p15, 0, r0, c7, c10, 4 @ drain WB mov r0, #0 ret lr +SYM_FUNC_END(arm925_coherent_user_range) /* * flush_kern_dcache_area(void *addr, size_t size) @@ -256,7 +262,7 @@ ENTRY(arm925_coherent_user_range) * - addr - kernel address * - size - region size */ -ENTRY(arm925_flush_kern_dcache_area) +SYM_TYPED_FUNC_START(arm925_flush_kern_dcache_area) add r1, r0, r1 1: mcr p15, 0, r0, c7, c14, 1 @ clean+invalidate D entry add r0, r0, #CACHE_DLINESIZE @@ -266,6 +272,7 @@ ENTRY(arm925_flush_kern_dcache_area) mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache mcr p15, 0, r0, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm925_flush_kern_dcache_area) /* * dma_inv_range(start, end) @@ -324,7 +331,7 @@ arm925_dma_clean_range: * - start - virtual start address * - end - virtual end address */ -ENTRY(arm925_dma_flush_range) +SYM_TYPED_FUNC_START(arm925_dma_flush_range) bic r0, r0, #CACHE_DLINESIZE - 1 1: #ifndef CONFIG_CPU_DCACHE_WRITETHROUGH @@ -337,6 +344,7 @@ ENTRY(arm925_dma_flush_range) blo 1b mcr p15, 0, r0, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm925_dma_flush_range) /* * dma_map_area(start, size, dir) @@ -344,13 +352,13 @@ ENTRY(arm925_dma_flush_range) * - size - size of region * - dir - DMA direction */ -ENTRY(arm925_dma_map_area) +SYM_TYPED_FUNC_START(arm925_dma_map_area) add r1, r1, r0 cmp r2, #DMA_TO_DEVICE beq arm925_dma_clean_range bcs arm925_dma_inv_range b arm925_dma_flush_range -ENDPROC(arm925_dma_map_area) +SYM_FUNC_END(arm925_dma_map_area) /* * dma_unmap_area(start, size, dir) @@ -358,9 +366,9 @@ ENDPROC(arm925_dma_map_area) * - size - size of region * - dir - DMA direction */ -ENTRY(arm925_dma_unmap_area) +SYM_TYPED_FUNC_START(arm925_dma_unmap_area) ret lr -ENDPROC(arm925_dma_unmap_area) +SYM_FUNC_END(arm925_dma_unmap_area) .globl arm925_flush_kern_cache_louis .equ arm925_flush_kern_cache_louis, arm925_flush_kern_cache_all diff --git a/arch/arm/mm/proc-arm926.S b/arch/arm/mm/proc-arm926.S index 0487a2c3439b..00f953dee122 100644 --- a/arch/arm/mm/proc-arm926.S +++ b/arch/arm/mm/proc-arm926.S @@ -13,6 +13,7 @@ */ #include #include +#include #include #include #include @@ -104,11 +105,11 @@ ENTRY(cpu_arm926_do_idle) * * Unconditionally clean and invalidate the entire icache. */ -ENTRY(arm926_flush_icache_all) +SYM_TYPED_FUNC_START(arm926_flush_icache_all) mov r0, #0 mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache ret lr -ENDPROC(arm926_flush_icache_all) +SYM_FUNC_END(arm926_flush_icache_all) /* * flush_user_cache_all() @@ -116,15 +117,16 @@ ENDPROC(arm926_flush_icache_all) * Clean and invalidate all cache entries in a particular * address space. */ -ENTRY(arm926_flush_user_cache_all) - /* FALLTHROUGH */ +SYM_TYPED_FUNC_START(arm926_flush_user_cache_all) + b arm926_flush_kern_cache_all +SYM_FUNC_END(arm926_flush_user_cache_all) /* * flush_kern_cache_all() * * Clean and invalidate the entire cache. */ -ENTRY(arm926_flush_kern_cache_all) +SYM_TYPED_FUNC_START(arm926_flush_kern_cache_all) mov r2, #VM_EXEC mov ip, #0 __flush_whole_cache: @@ -138,6 +140,7 @@ __flush_whole_cache: mcrne p15, 0, ip, c7, c5, 0 @ invalidate I cache mcrne p15, 0, ip, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm926_flush_kern_cache_all) /* * flush_user_cache_range(start, end, flags) @@ -149,7 +152,7 @@ __flush_whole_cache: * - end - end address (exclusive) * - flags - vm_flags describing address space */ -ENTRY(arm926_flush_user_cache_range) +SYM_TYPED_FUNC_START(arm926_flush_user_cache_range) mov ip, #0 sub r3, r1, r0 @ calculate total size cmp r3, #CACHE_DLIMIT @@ -175,6 +178,7 @@ ENTRY(arm926_flush_user_cache_range) tst r2, #VM_EXEC mcrne p15, 0, ip, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm926_flush_user_cache_range) /* * coherent_kern_range(start, end) @@ -186,8 +190,9 @@ ENTRY(arm926_flush_user_cache_range) * - start - virtual start address * - end - virtual end address */ -ENTRY(arm926_coherent_kern_range) - /* FALLTHROUGH */ +SYM_TYPED_FUNC_START(arm926_coherent_kern_range) + b arm926_coherent_user_range +SYM_FUNC_END(arm926_coherent_kern_range) /* * coherent_user_range(start, end) @@ -199,7 +204,7 @@ ENTRY(arm926_coherent_kern_range) * - start - virtual start address * - end - virtual end address */ -ENTRY(arm926_coherent_user_range) +SYM_TYPED_FUNC_START(arm926_coherent_user_range) bic r0, r0, #CACHE_DLINESIZE - 1 1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry mcr p15, 0, r0, c7, c5, 1 @ invalidate I entry @@ -209,6 +214,7 @@ ENTRY(arm926_coherent_user_range) mcr p15, 0, r0, c7, c10, 4 @ drain WB mov r0, #0 ret lr +SYM_FUNC_END(arm926_coherent_user_range) /* * flush_kern_dcache_area(void *addr, size_t size) @@ -219,7 +225,7 @@ ENTRY(arm926_coherent_user_range) * - addr - kernel address * - size - region size */ -ENTRY(arm926_flush_kern_dcache_area) +SYM_TYPED_FUNC_START(arm926_flush_kern_dcache_area) add r1, r0, r1 1: mcr p15, 0, r0, c7, c14, 1 @ clean+invalidate D entry add r0, r0, #CACHE_DLINESIZE @@ -229,6 +235,7 @@ ENTRY(arm926_flush_kern_dcache_area) mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache mcr p15, 0, r0, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm926_flush_kern_dcache_area) /* * dma_inv_range(start, end) @@ -287,7 +294,7 @@ arm926_dma_clean_range: * - start - virtual start address * - end - virtual end address */ -ENTRY(arm926_dma_flush_range) +SYM_TYPED_FUNC_START(arm926_dma_flush_range) bic r0, r0, #CACHE_DLINESIZE - 1 1: #ifndef CONFIG_CPU_DCACHE_WRITETHROUGH @@ -300,6 +307,7 @@ ENTRY(arm926_dma_flush_range) blo 1b mcr p15, 0, r0, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm926_dma_flush_range) /* * dma_map_area(start, size, dir) @@ -307,13 +315,13 @@ ENTRY(arm926_dma_flush_range) * - size - size of region * - dir - DMA direction */ -ENTRY(arm926_dma_map_area) +SYM_TYPED_FUNC_START(arm926_dma_map_area) add r1, r1, r0 cmp r2, #DMA_TO_DEVICE beq arm926_dma_clean_range bcs arm926_dma_inv_range b arm926_dma_flush_range -ENDPROC(arm926_dma_map_area) +SYM_FUNC_END(arm926_dma_map_area) /* * dma_unmap_area(start, size, dir) @@ -321,9 +329,9 @@ ENDPROC(arm926_dma_map_area) * - size - size of region * - dir - DMA direction */ -ENTRY(arm926_dma_unmap_area) +SYM_TYPED_FUNC_START(arm926_dma_unmap_area) ret lr -ENDPROC(arm926_dma_unmap_area) +SYM_FUNC_END(arm926_dma_unmap_area) .globl arm926_flush_kern_cache_louis .equ arm926_flush_kern_cache_louis, arm926_flush_kern_cache_all diff --git a/arch/arm/mm/proc-arm940.S b/arch/arm/mm/proc-arm940.S index cf9bfcc825ca..7e32ec271e8a 100644 --- a/arch/arm/mm/proc-arm940.S +++ b/arch/arm/mm/proc-arm940.S @@ -6,6 +6,7 @@ */ #include #include +#include #include #include #include @@ -71,26 +72,28 @@ ENTRY(cpu_arm940_do_idle) * * Unconditionally clean and invalidate the entire icache. */ -ENTRY(arm940_flush_icache_all) +SYM_TYPED_FUNC_START(arm940_flush_icache_all) mov r0, #0 mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache ret lr -ENDPROC(arm940_flush_icache_all) +SYM_FUNC_END(arm940_flush_icache_all) /* * flush_user_cache_all() */ -ENTRY(arm940_flush_user_cache_all) - /* FALLTHROUGH */ +SYM_TYPED_FUNC_START(arm940_flush_user_cache_all) + b arm940_flush_kern_cache_all +SYM_FUNC_END(arm940_flush_user_cache_all) /* * flush_kern_cache_all() * * Clean and invalidate the entire cache. */ -ENTRY(arm940_flush_kern_cache_all) +SYM_TYPED_FUNC_START(arm940_flush_kern_cache_all) mov r2, #VM_EXEC - /* FALLTHROUGH */ + b arm940_flush_user_cache_range +SYM_FUNC_END(arm940_flush_kern_cache_all) /* * flush_user_cache_range(start, end, flags) @@ -102,7 +105,7 @@ ENTRY(arm940_flush_kern_cache_all) * - end - end address (exclusive) * - flags - vm_flags describing address space */ -ENTRY(arm940_flush_user_cache_range) +SYM_TYPED_FUNC_START(arm940_flush_user_cache_range) mov ip, #0 #ifdef CONFIG_CPU_DCACHE_WRITETHROUGH mcr p15, 0, ip, c7, c6, 0 @ flush D cache @@ -119,6 +122,7 @@ ENTRY(arm940_flush_user_cache_range) mcrne p15, 0, ip, c7, c5, 0 @ invalidate I cache mcrne p15, 0, ip, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm940_flush_user_cache_range) /* * coherent_kern_range(start, end) @@ -130,8 +134,9 @@ ENTRY(arm940_flush_user_cache_range) * - start - virtual start address * - end - virtual end address */ -ENTRY(arm940_coherent_kern_range) - /* FALLTHROUGH */ +SYM_TYPED_FUNC_START(arm940_coherent_kern_range) + b arm940_flush_kern_dcache_area +SYM_FUNC_END(arm940_coherent_kern_range) /* * coherent_user_range(start, end) @@ -143,8 +148,9 @@ ENTRY(arm940_coherent_kern_range) * - start - virtual start address * - end - virtual end address */ -ENTRY(arm940_coherent_user_range) - /* FALLTHROUGH */ +SYM_TYPED_FUNC_START(arm940_coherent_user_range) + b arm940_flush_kern_dcache_area +SYM_FUNC_END(arm940_coherent_user_range) /* * flush_kern_dcache_area(void *addr, size_t size) @@ -155,7 +161,7 @@ ENTRY(arm940_coherent_user_range) * - addr - kernel address * - size - region size */ -ENTRY(arm940_flush_kern_dcache_area) +SYM_TYPED_FUNC_START(arm940_flush_kern_dcache_area) mov r0, #0 mov r1, #(CACHE_DSEGMENTS - 1) << 4 @ 4 segments 1: orr r3, r1, #(CACHE_DENTRIES - 1) << 26 @ 64 entries @@ -167,6 +173,7 @@ ENTRY(arm940_flush_kern_dcache_area) mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache mcr p15, 0, r0, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm940_flush_kern_dcache_area) /* * dma_inv_range(start, end) @@ -222,7 +229,7 @@ ENTRY(cpu_arm940_dcache_clean_area) * - start - virtual start address * - end - virtual end address */ -ENTRY(arm940_dma_flush_range) +SYM_TYPED_FUNC_START(arm940_dma_flush_range) mov ip, #0 mov r1, #(CACHE_DSEGMENTS - 1) << 4 @ 4 segments 1: orr r3, r1, #(CACHE_DENTRIES - 1) << 26 @ 64 entries @@ -238,6 +245,7 @@ ENTRY(arm940_dma_flush_range) bcs 1b @ segments 7 to 0 mcr p15, 0, ip, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm940_dma_flush_range) /* * dma_map_area(start, size, dir) @@ -245,13 +253,13 @@ ENTRY(arm940_dma_flush_range) * - size - size of region * - dir - DMA direction */ -ENTRY(arm940_dma_map_area) +SYM_TYPED_FUNC_START(arm940_dma_map_area) add r1, r1, r0 cmp r2, #DMA_TO_DEVICE beq arm940_dma_clean_range bcs arm940_dma_inv_range b arm940_dma_flush_range -ENDPROC(arm940_dma_map_area) +SYM_FUNC_END(arm940_dma_map_area) /* * dma_unmap_area(start, size, dir) @@ -259,9 +267,9 @@ ENDPROC(arm940_dma_map_area) * - size - size of region * - dir - DMA direction */ -ENTRY(arm940_dma_unmap_area) +SYM_TYPED_FUNC_START(arm940_dma_unmap_area) ret lr -ENDPROC(arm940_dma_unmap_area) +SYM_FUNC_END(arm940_dma_unmap_area) .globl arm940_flush_kern_cache_louis .equ arm940_flush_kern_cache_louis, arm940_flush_kern_cache_all diff --git a/arch/arm/mm/proc-arm946.S b/arch/arm/mm/proc-arm946.S index 6fb3898ad1cd..4fc883572e19 100644 --- a/arch/arm/mm/proc-arm946.S +++ b/arch/arm/mm/proc-arm946.S @@ -8,6 +8,7 @@ */ #include #include +#include #include #include #include @@ -78,24 +79,25 @@ ENTRY(cpu_arm946_do_idle) * * Unconditionally clean and invalidate the entire icache. */ -ENTRY(arm946_flush_icache_all) +SYM_TYPED_FUNC_START(arm946_flush_icache_all) mov r0, #0 mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache ret lr -ENDPROC(arm946_flush_icache_all) +SYM_FUNC_END(arm946_flush_icache_all) /* * flush_user_cache_all() */ -ENTRY(arm946_flush_user_cache_all) - /* FALLTHROUGH */ +SYM_TYPED_FUNC_START(arm946_flush_user_cache_all) + b arm946_flush_kern_cache_all +SYM_FUNC_END(arm946_flush_user_cache_all) /* * flush_kern_cache_all() * * Clean and invalidate the entire cache. */ -ENTRY(arm946_flush_kern_cache_all) +SYM_TYPED_FUNC_START(arm946_flush_kern_cache_all) mov r2, #VM_EXEC mov ip, #0 __flush_whole_cache: @@ -114,6 +116,7 @@ __flush_whole_cache: mcrne p15, 0, ip, c7, c5, 0 @ flush I cache mcrne p15, 0, ip, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm946_flush_kern_cache_all) /* * flush_user_cache_range(start, end, flags) @@ -126,7 +129,7 @@ __flush_whole_cache: * - flags - vm_flags describing address space * (same as arm926) */ -ENTRY(arm946_flush_user_cache_range) +SYM_TYPED_FUNC_START(arm946_flush_user_cache_range) mov ip, #0 sub r3, r1, r0 @ calculate total size cmp r3, #CACHE_DLIMIT @@ -153,6 +156,7 @@ ENTRY(arm946_flush_user_cache_range) tst r2, #VM_EXEC mcrne p15, 0, ip, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm946_flush_user_cache_range) /* * coherent_kern_range(start, end) @@ -164,8 +168,9 @@ ENTRY(arm946_flush_user_cache_range) * - start - virtual start address * - end - virtual end address */ -ENTRY(arm946_coherent_kern_range) - /* FALLTHROUGH */ +SYM_TYPED_FUNC_START(arm946_coherent_kern_range) + b arm946_coherent_user_range +SYM_FUNC_END(arm946_coherent_kern_range) /* * coherent_user_range(start, end) @@ -178,7 +183,7 @@ ENTRY(arm946_coherent_kern_range) * - end - virtual end address * (same as arm926) */ -ENTRY(arm946_coherent_user_range) +SYM_TYPED_FUNC_START(arm946_coherent_user_range) bic r0, r0, #CACHE_DLINESIZE - 1 1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry mcr p15, 0, r0, c7, c5, 1 @ invalidate I entry @@ -188,6 +193,7 @@ ENTRY(arm946_coherent_user_range) mcr p15, 0, r0, c7, c10, 4 @ drain WB mov r0, #0 ret lr +SYM_FUNC_END(arm946_coherent_user_range) /* * flush_kern_dcache_area(void *addr, size_t size) @@ -199,7 +205,7 @@ ENTRY(arm946_coherent_user_range) * - size - region size * (same as arm926) */ -ENTRY(arm946_flush_kern_dcache_area) +SYM_TYPED_FUNC_START(arm946_flush_kern_dcache_area) add r1, r0, r1 1: mcr p15, 0, r0, c7, c14, 1 @ clean+invalidate D entry add r0, r0, #CACHE_DLINESIZE @@ -209,6 +215,7 @@ ENTRY(arm946_flush_kern_dcache_area) mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache mcr p15, 0, r0, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm946_flush_kern_dcache_area) /* * dma_inv_range(start, end) @@ -268,7 +275,7 @@ arm946_dma_clean_range: * * (same as arm926) */ -ENTRY(arm946_dma_flush_range) +SYM_TYPED_FUNC_START(arm946_dma_flush_range) bic r0, r0, #CACHE_DLINESIZE - 1 1: #ifndef CONFIG_CPU_DCACHE_WRITETHROUGH @@ -281,6 +288,7 @@ ENTRY(arm946_dma_flush_range) blo 1b mcr p15, 0, r0, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(arm946_dma_flush_range) /* * dma_map_area(start, size, dir) @@ -288,13 +296,13 @@ ENTRY(arm946_dma_flush_range) * - size - size of region * - dir - DMA direction */ -ENTRY(arm946_dma_map_area) +SYM_TYPED_FUNC_START(arm946_dma_map_area) add r1, r1, r0 cmp r2, #DMA_TO_DEVICE beq arm946_dma_clean_range bcs arm946_dma_inv_range b arm946_dma_flush_range -ENDPROC(arm946_dma_map_area) +SYM_FUNC_END(arm946_dma_map_area) /* * dma_unmap_area(start, size, dir) @@ -302,9 +310,9 @@ ENDPROC(arm946_dma_map_area) * - size - size of region * - dir - DMA direction */ -ENTRY(arm946_dma_unmap_area) +SYM_TYPED_FUNC_START(arm946_dma_unmap_area) ret lr -ENDPROC(arm946_dma_unmap_area) +SYM_FUNC_END(arm946_dma_unmap_area) .globl arm946_flush_kern_cache_louis .equ arm946_flush_kern_cache_louis, arm946_flush_kern_cache_all diff --git a/arch/arm/mm/proc-feroceon.S b/arch/arm/mm/proc-feroceon.S index 072ff9b451f8..ee936c23cac5 100644 --- a/arch/arm/mm/proc-feroceon.S +++ b/arch/arm/mm/proc-feroceon.S @@ -8,6 +8,7 @@ #include #include +#include #include #include #include @@ -122,11 +123,11 @@ ENTRY(cpu_feroceon_do_idle) * * Unconditionally clean and invalidate the entire icache. */ -ENTRY(feroceon_flush_icache_all) +SYM_TYPED_FUNC_START(feroceon_flush_icache_all) mov r0, #0 mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache ret lr -ENDPROC(feroceon_flush_icache_all) +SYM_FUNC_END(feroceon_flush_icache_all) /* * flush_user_cache_all() @@ -135,15 +136,16 @@ ENDPROC(feroceon_flush_icache_all) * address space. */ .align 5 -ENTRY(feroceon_flush_user_cache_all) - /* FALLTHROUGH */ +SYM_TYPED_FUNC_START(feroceon_flush_user_cache_all) + b feroceon_flush_kern_cache_all +SYM_FUNC_END(feroceon_flush_user_cache_all) /* * flush_kern_cache_all() * * Clean and invalidate the entire cache. */ -ENTRY(feroceon_flush_kern_cache_all) +SYM_TYPED_FUNC_START(feroceon_flush_kern_cache_all) mov r2, #VM_EXEC __flush_whole_cache: @@ -161,6 +163,7 @@ __flush_whole_cache: mcrne p15, 0, ip, c7, c5, 0 @ invalidate I cache mcrne p15, 0, ip, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(feroceon_flush_kern_cache_all) /* * flush_user_cache_range(start, end, flags) @@ -173,7 +176,7 @@ __flush_whole_cache: * - flags - vm_flags describing address space */ .align 5 -ENTRY(feroceon_flush_user_cache_range) +SYM_TYPED_FUNC_START(feroceon_flush_user_cache_range) sub r3, r1, r0 @ calculate total size cmp r3, #CACHE_DLIMIT bgt __flush_whole_cache @@ -190,6 +193,7 @@ ENTRY(feroceon_flush_user_cache_range) mov ip, #0 mcrne p15, 0, ip, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(feroceon_flush_user_cache_range) /* * coherent_kern_range(start, end) @@ -202,8 +206,9 @@ ENTRY(feroceon_flush_user_cache_range) * - end - virtual end address */ .align 5 -ENTRY(feroceon_coherent_kern_range) - /* FALLTHROUGH */ +SYM_TYPED_FUNC_START(feroceon_coherent_kern_range) + b feroceon_coherent_user_range +SYM_FUNC_END(feroceon_coherent_kern_range) /* * coherent_user_range(start, end) @@ -215,7 +220,7 @@ ENTRY(feroceon_coherent_kern_range) * - start - virtual start address * - end - virtual end address */ -ENTRY(feroceon_coherent_user_range) +SYM_TYPED_FUNC_START(feroceon_coherent_user_range) bic r0, r0, #CACHE_DLINESIZE - 1 1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry mcr p15, 0, r0, c7, c5, 1 @ invalidate I entry @@ -225,6 +230,7 @@ ENTRY(feroceon_coherent_user_range) mcr p15, 0, r0, c7, c10, 4 @ drain WB mov r0, #0 ret lr +SYM_FUNC_END(feroceon_coherent_user_range) /* * flush_kern_dcache_area(void *addr, size_t size) @@ -236,7 +242,7 @@ ENTRY(feroceon_coherent_user_range) * - size - region size */ .align 5 -ENTRY(feroceon_flush_kern_dcache_area) +SYM_TYPED_FUNC_START(feroceon_flush_kern_dcache_area) add r1, r0, r1 1: mcr p15, 0, r0, c7, c14, 1 @ clean+invalidate D entry add r0, r0, #CACHE_DLINESIZE @@ -246,9 +252,10 @@ ENTRY(feroceon_flush_kern_dcache_area) mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache mcr p15, 0, r0, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(feroceon_flush_kern_dcache_area) .align 5 -ENTRY(feroceon_range_flush_kern_dcache_area) +SYM_TYPED_FUNC_START(feroceon_range_flush_kern_dcache_area) mrs r2, cpsr add r1, r0, #PAGE_SZ - CACHE_DLINESIZE @ top addr is inclusive orr r3, r2, #PSR_I_BIT @@ -260,6 +267,7 @@ ENTRY(feroceon_range_flush_kern_dcache_area) mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache mcr p15, 0, r0, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(feroceon_range_flush_kern_dcache_area) /* * dma_inv_range(start, end) @@ -346,7 +354,7 @@ feroceon_range_dma_clean_range: * - end - virtual end address */ .align 5 -ENTRY(feroceon_dma_flush_range) +SYM_TYPED_FUNC_START(feroceon_dma_flush_range) bic r0, r0, #CACHE_DLINESIZE - 1 1: mcr p15, 0, r0, c7, c14, 1 @ clean+invalidate D entry add r0, r0, #CACHE_DLINESIZE @@ -354,9 +362,10 @@ ENTRY(feroceon_dma_flush_range) blo 1b mcr p15, 0, r0, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(feroceon_dma_flush_range) .align 5 -ENTRY(feroceon_range_dma_flush_range) +SYM_TYPED_FUNC_START(feroceon_range_dma_flush_range) mrs r2, cpsr cmp r1, r0 subne r1, r1, #1 @ top address is inclusive @@ -367,6 +376,7 @@ ENTRY(feroceon_range_dma_flush_range) msr cpsr_c, r2 @ restore interrupts mcr p15, 0, r0, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(feroceon_range_dma_flush_range) /* * dma_map_area(start, size, dir) @@ -374,13 +384,13 @@ ENTRY(feroceon_range_dma_flush_range) * - size - size of region * - dir - DMA direction */ -ENTRY(feroceon_dma_map_area) +SYM_TYPED_FUNC_START(feroceon_dma_map_area) add r1, r1, r0 cmp r2, #DMA_TO_DEVICE beq feroceon_dma_clean_range bcs feroceon_dma_inv_range b feroceon_dma_flush_range -ENDPROC(feroceon_dma_map_area) +SYM_FUNC_END(feroceon_dma_map_area) /* * dma_map_area(start, size, dir) @@ -388,13 +398,13 @@ ENDPROC(feroceon_dma_map_area) * - size - size of region * - dir - DMA direction */ -ENTRY(feroceon_range_dma_map_area) +SYM_TYPED_FUNC_START(feroceon_range_dma_map_area) add r1, r1, r0 cmp r2, #DMA_TO_DEVICE beq feroceon_range_dma_clean_range bcs feroceon_range_dma_inv_range b feroceon_range_dma_flush_range -ENDPROC(feroceon_range_dma_map_area) +SYM_FUNC_END(feroceon_range_dma_map_area) /* * dma_unmap_area(start, size, dir) @@ -402,9 +412,9 @@ ENDPROC(feroceon_range_dma_map_area) * - size - size of region * - dir - DMA direction */ -ENTRY(feroceon_dma_unmap_area) +SYM_TYPED_FUNC_START(feroceon_dma_unmap_area) ret lr -ENDPROC(feroceon_dma_unmap_area) +SYM_FUNC_END(feroceon_dma_unmap_area) .globl feroceon_flush_kern_cache_louis .equ feroceon_flush_kern_cache_louis, feroceon_flush_kern_cache_all diff --git a/arch/arm/mm/proc-mohawk.S b/arch/arm/mm/proc-mohawk.S index 1645ccaffe96..519b7ff2c589 100644 --- a/arch/arm/mm/proc-mohawk.S +++ b/arch/arm/mm/proc-mohawk.S @@ -9,6 +9,7 @@ #include #include +#include #include #include #include @@ -87,11 +88,11 @@ ENTRY(cpu_mohawk_do_idle) * * Unconditionally clean and invalidate the entire icache. */ -ENTRY(mohawk_flush_icache_all) +SYM_TYPED_FUNC_START(mohawk_flush_icache_all) mov r0, #0 mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache ret lr -ENDPROC(mohawk_flush_icache_all) +SYM_FUNC_END(mohawk_flush_icache_all) /* * flush_user_cache_all() @@ -99,15 +100,16 @@ ENDPROC(mohawk_flush_icache_all) * Clean and invalidate all cache entries in a particular * address space. */ -ENTRY(mohawk_flush_user_cache_all) - /* FALLTHROUGH */ +SYM_TYPED_FUNC_START(mohawk_flush_user_cache_all) + b mohawk_flush_kern_cache_all +SYM_FUNC_END(mohawk_flush_user_cache_all) /* * flush_kern_cache_all() * * Clean and invalidate the entire cache. */ -ENTRY(mohawk_flush_kern_cache_all) +SYM_TYPED_FUNC_START(mohawk_flush_kern_cache_all) mov r2, #VM_EXEC mov ip, #0 __flush_whole_cache: @@ -116,6 +118,7 @@ __flush_whole_cache: mcrne p15, 0, ip, c7, c5, 0 @ invalidate I cache mcrne p15, 0, ip, c7, c10, 0 @ drain write buffer ret lr +SYM_FUNC_END(mohawk_flush_kern_cache_all) /* * flush_user_cache_range(start, end, flags) @@ -129,7 +132,7 @@ __flush_whole_cache: * * (same as arm926) */ -ENTRY(mohawk_flush_user_cache_range) +SYM_TYPED_FUNC_START(mohawk_flush_user_cache_range) mov ip, #0 sub r3, r1, r0 @ calculate total size cmp r3, #CACHE_DLIMIT @@ -146,6 +149,7 @@ ENTRY(mohawk_flush_user_cache_range) tst r2, #VM_EXEC mcrne p15, 0, ip, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(mohawk_flush_user_cache_range) /* * coherent_kern_range(start, end) @@ -157,8 +161,9 @@ ENTRY(mohawk_flush_user_cache_range) * - start - virtual start address * - end - virtual end address */ -ENTRY(mohawk_coherent_kern_range) - /* FALLTHROUGH */ +SYM_TYPED_FUNC_START(mohawk_coherent_kern_range) + b mohawk_coherent_user_range +SYM_FUNC_END(mohawk_coherent_kern_range) /* * coherent_user_range(start, end) @@ -172,7 +177,7 @@ ENTRY(mohawk_coherent_kern_range) * * (same as arm926) */ -ENTRY(mohawk_coherent_user_range) +SYM_TYPED_FUNC_START(mohawk_coherent_user_range) bic r0, r0, #CACHE_DLINESIZE - 1 1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry mcr p15, 0, r0, c7, c5, 1 @ invalidate I entry @@ -182,6 +187,7 @@ ENTRY(mohawk_coherent_user_range) mcr p15, 0, r0, c7, c10, 4 @ drain WB mov r0, #0 ret lr +SYM_FUNC_END(mohawk_coherent_user_range) /* * flush_kern_dcache_area(void *addr, size_t size) @@ -192,7 +198,7 @@ ENTRY(mohawk_coherent_user_range) * - addr - kernel address * - size - region size */ -ENTRY(mohawk_flush_kern_dcache_area) +SYM_TYPED_FUNC_START(mohawk_flush_kern_dcache_area) add r1, r0, r1 1: mcr p15, 0, r0, c7, c14, 1 @ clean+invalidate D entry add r0, r0, #CACHE_DLINESIZE @@ -202,6 +208,7 @@ ENTRY(mohawk_flush_kern_dcache_area) mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache mcr p15, 0, r0, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(mohawk_flush_kern_dcache_area) /* * dma_inv_range(start, end) @@ -256,7 +263,7 @@ mohawk_dma_clean_range: * - start - virtual start address * - end - virtual end address */ -ENTRY(mohawk_dma_flush_range) +SYM_TYPED_FUNC_START(mohawk_dma_flush_range) bic r0, r0, #CACHE_DLINESIZE - 1 1: mcr p15, 0, r0, c7, c14, 1 @ clean+invalidate D entry @@ -265,6 +272,7 @@ ENTRY(mohawk_dma_flush_range) blo 1b mcr p15, 0, r0, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(mohawk_dma_flush_range) /* * dma_map_area(start, size, dir) @@ -272,13 +280,13 @@ ENTRY(mohawk_dma_flush_range) * - size - size of region * - dir - DMA direction */ -ENTRY(mohawk_dma_map_area) +SYM_TYPED_FUNC_START(mohawk_dma_map_area) add r1, r1, r0 cmp r2, #DMA_TO_DEVICE beq mohawk_dma_clean_range bcs mohawk_dma_inv_range b mohawk_dma_flush_range -ENDPROC(mohawk_dma_map_area) +SYM_FUNC_END(mohawk_dma_map_area) /* * dma_unmap_area(start, size, dir) @@ -286,9 +294,9 @@ ENDPROC(mohawk_dma_map_area) * - size - size of region * - dir - DMA direction */ -ENTRY(mohawk_dma_unmap_area) +SYM_TYPED_FUNC_START(mohawk_dma_unmap_area) ret lr -ENDPROC(mohawk_dma_unmap_area) +SYM_FUNC_END(mohawk_dma_unmap_area) .globl mohawk_flush_kern_cache_louis .equ mohawk_flush_kern_cache_louis, mohawk_flush_kern_cache_all diff --git a/arch/arm/mm/proc-xsc3.S b/arch/arm/mm/proc-xsc3.S index a17afe7e195a..f08b3fce4c95 100644 --- a/arch/arm/mm/proc-xsc3.S +++ b/arch/arm/mm/proc-xsc3.S @@ -23,6 +23,7 @@ #include #include +#include #include #include #include @@ -144,11 +145,11 @@ ENTRY(cpu_xsc3_do_idle) * * Unconditionally clean and invalidate the entire icache. */ -ENTRY(xsc3_flush_icache_all) +SYM_TYPED_FUNC_START(xsc3_flush_icache_all) mov r0, #0 mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache ret lr -ENDPROC(xsc3_flush_icache_all) +SYM_FUNC_END(xsc3_flush_icache_all) /* * flush_user_cache_all() @@ -156,15 +157,16 @@ ENDPROC(xsc3_flush_icache_all) * Invalidate all cache entries in a particular address * space. */ -ENTRY(xsc3_flush_user_cache_all) - /* FALLTHROUGH */ +SYM_TYPED_FUNC_START(xsc3_flush_user_cache_all) + b xsc3_flush_kern_cache_all +SYM_FUNC_END(xsc3_flush_user_cache_all) /* * flush_kern_cache_all() * * Clean and invalidate the entire cache. */ -ENTRY(xsc3_flush_kern_cache_all) +SYM_TYPED_FUNC_START(xsc3_flush_kern_cache_all) mov r2, #VM_EXEC mov ip, #0 __flush_whole_cache: @@ -174,6 +176,7 @@ __flush_whole_cache: mcrne p15, 0, ip, c7, c10, 4 @ data write barrier mcrne p15, 0, ip, c7, c5, 4 @ prefetch flush ret lr +SYM_FUNC_END(xsc3_flush_kern_cache_all) /* * flush_user_cache_range(start, end, vm_flags) @@ -186,7 +189,7 @@ __flush_whole_cache: * - vma - vma_area_struct describing address space */ .align 5 -ENTRY(xsc3_flush_user_cache_range) +SYM_TYPED_FUNC_START(xsc3_flush_user_cache_range) mov ip, #0 sub r3, r1, r0 @ calculate total size cmp r3, #MAX_AREA_SIZE @@ -203,6 +206,7 @@ ENTRY(xsc3_flush_user_cache_range) mcrne p15, 0, ip, c7, c10, 4 @ data write barrier mcrne p15, 0, ip, c7, c5, 4 @ prefetch flush ret lr +SYM_FUNC_END(xsc3_flush_user_cache_range) /* * coherent_kern_range(start, end) @@ -217,9 +221,11 @@ ENTRY(xsc3_flush_user_cache_range) * Note: single I-cache line invalidation isn't used here since * it also trashes the mini I-cache used by JTAG debuggers. */ -ENTRY(xsc3_coherent_kern_range) -/* FALLTHROUGH */ -ENTRY(xsc3_coherent_user_range) +SYM_TYPED_FUNC_START(xsc3_coherent_kern_range) + b xsc3_coherent_user_range +SYM_FUNC_END(xsc3_coherent_kern_range) + +SYM_TYPED_FUNC_START(xsc3_coherent_user_range) bic r0, r0, #CACHELINESIZE - 1 1: mcr p15, 0, r0, c7, c10, 1 @ clean L1 D line add r0, r0, #CACHELINESIZE @@ -230,6 +236,7 @@ ENTRY(xsc3_coherent_user_range) mcr p15, 0, r0, c7, c10, 4 @ data write barrier mcr p15, 0, r0, c7, c5, 4 @ prefetch flush ret lr +SYM_FUNC_END(xsc3_coherent_user_range) /* * flush_kern_dcache_area(void *addr, size_t size) @@ -240,7 +247,7 @@ ENTRY(xsc3_coherent_user_range) * - addr - kernel address * - size - region size */ -ENTRY(xsc3_flush_kern_dcache_area) +SYM_TYPED_FUNC_START(xsc3_flush_kern_dcache_area) add r1, r0, r1 1: mcr p15, 0, r0, c7, c14, 1 @ clean/invalidate L1 D line add r0, r0, #CACHELINESIZE @@ -251,6 +258,7 @@ ENTRY(xsc3_flush_kern_dcache_area) mcr p15, 0, r0, c7, c10, 4 @ data write barrier mcr p15, 0, r0, c7, c5, 4 @ prefetch flush ret lr +SYM_FUNC_END(xsc3_flush_kern_dcache_area) /* * dma_inv_range(start, end) @@ -301,7 +309,7 @@ xsc3_dma_clean_range: * - start - virtual start address * - end - virtual end address */ -ENTRY(xsc3_dma_flush_range) +SYM_TYPED_FUNC_START(xsc3_dma_flush_range) bic r0, r0, #CACHELINESIZE - 1 1: mcr p15, 0, r0, c7, c14, 1 @ clean/invalidate L1 D line add r0, r0, #CACHELINESIZE @@ -309,6 +317,7 @@ ENTRY(xsc3_dma_flush_range) blo 1b mcr p15, 0, r0, c7, c10, 4 @ data write barrier ret lr +SYM_FUNC_END(xsc3_dma_flush_range) /* * dma_map_area(start, size, dir) @@ -316,13 +325,13 @@ ENTRY(xsc3_dma_flush_range) * - size - size of region * - dir - DMA direction */ -ENTRY(xsc3_dma_map_area) +SYM_TYPED_FUNC_START(xsc3_dma_map_area) add r1, r1, r0 cmp r2, #DMA_TO_DEVICE beq xsc3_dma_clean_range bcs xsc3_dma_inv_range b xsc3_dma_flush_range -ENDPROC(xsc3_dma_map_area) +SYM_FUNC_END(xsc3_dma_map_area) /* * dma_unmap_area(start, size, dir) @@ -330,9 +339,9 @@ ENDPROC(xsc3_dma_map_area) * - size - size of region * - dir - DMA direction */ -ENTRY(xsc3_dma_unmap_area) +SYM_TYPED_FUNC_START(xsc3_dma_unmap_area) ret lr -ENDPROC(xsc3_dma_unmap_area) +SYM_FUNC_END(xsc3_dma_unmap_area) .globl xsc3_flush_kern_cache_louis .equ xsc3_flush_kern_cache_louis, xsc3_flush_kern_cache_all diff --git a/arch/arm/mm/proc-xscale.S b/arch/arm/mm/proc-xscale.S index d82590aa71c0..3e427db18d5b 100644 --- a/arch/arm/mm/proc-xscale.S +++ b/arch/arm/mm/proc-xscale.S @@ -19,6 +19,7 @@ #include #include +#include #include #include #include @@ -186,11 +187,11 @@ ENTRY(cpu_xscale_do_idle) * * Unconditionally clean and invalidate the entire icache. */ -ENTRY(xscale_flush_icache_all) +SYM_TYPED_FUNC_START(xscale_flush_icache_all) mov r0, #0 mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache ret lr -ENDPROC(xscale_flush_icache_all) +SYM_FUNC_END(xscale_flush_icache_all) /* * flush_user_cache_all() @@ -198,15 +199,16 @@ ENDPROC(xscale_flush_icache_all) * Invalidate all cache entries in a particular address * space. */ -ENTRY(xscale_flush_user_cache_all) - /* FALLTHROUGH */ +SYM_TYPED_FUNC_START(xscale_flush_user_cache_all) + b xscale_flush_kern_cache_all +SYM_FUNC_END(xscale_flush_user_cache_all) /* * flush_kern_cache_all() * * Clean and invalidate the entire cache. */ -ENTRY(xscale_flush_kern_cache_all) +SYM_TYPED_FUNC_START(xscale_flush_kern_cache_all) mov r2, #VM_EXEC mov ip, #0 __flush_whole_cache: @@ -215,6 +217,7 @@ __flush_whole_cache: mcrne p15, 0, ip, c7, c5, 0 @ Invalidate I cache & BTB mcrne p15, 0, ip, c7, c10, 4 @ Drain Write (& Fill) Buffer ret lr +SYM_FUNC_END(xscale_flush_kern_cache_all) /* * flush_user_cache_range(start, end, vm_flags) @@ -227,7 +230,7 @@ __flush_whole_cache: * - vma - vma_area_struct describing address space */ .align 5 -ENTRY(xscale_flush_user_cache_range) +SYM_TYPED_FUNC_START(xscale_flush_user_cache_range) mov ip, #0 sub r3, r1, r0 @ calculate total size cmp r3, #MAX_AREA_SIZE @@ -244,6 +247,7 @@ ENTRY(xscale_flush_user_cache_range) mcrne p15, 0, ip, c7, c5, 6 @ Invalidate BTB mcrne p15, 0, ip, c7, c10, 4 @ Drain Write (& Fill) Buffer ret lr +SYM_FUNC_END(xscale_flush_user_cache_range) /* * coherent_kern_range(start, end) @@ -258,7 +262,7 @@ ENTRY(xscale_flush_user_cache_range) * Note: single I-cache line invalidation isn't used here since * it also trashes the mini I-cache used by JTAG debuggers. */ -ENTRY(xscale_coherent_kern_range) +SYM_TYPED_FUNC_START(xscale_coherent_kern_range) bic r0, r0, #CACHELINESIZE - 1 1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry add r0, r0, #CACHELINESIZE @@ -268,6 +272,7 @@ ENTRY(xscale_coherent_kern_range) mcr p15, 0, r0, c7, c5, 0 @ Invalidate I cache & BTB mcr p15, 0, r0, c7, c10, 4 @ Drain Write (& Fill) Buffer ret lr +SYM_FUNC_END(xscale_coherent_kern_range) /* * coherent_user_range(start, end) @@ -279,7 +284,7 @@ ENTRY(xscale_coherent_kern_range) * - start - virtual start address * - end - virtual end address */ -ENTRY(xscale_coherent_user_range) +SYM_TYPED_FUNC_START(xscale_coherent_user_range) bic r0, r0, #CACHELINESIZE - 1 1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry mcr p15, 0, r0, c7, c5, 1 @ Invalidate I cache entry @@ -290,6 +295,7 @@ ENTRY(xscale_coherent_user_range) mcr p15, 0, r0, c7, c5, 6 @ Invalidate BTB mcr p15, 0, r0, c7, c10, 4 @ Drain Write (& Fill) Buffer ret lr +SYM_FUNC_END(xscale_coherent_user_range) /* * flush_kern_dcache_area(void *addr, size_t size) @@ -300,7 +306,7 @@ ENTRY(xscale_coherent_user_range) * - addr - kernel address * - size - region size */ -ENTRY(xscale_flush_kern_dcache_area) +SYM_TYPED_FUNC_START(xscale_flush_kern_dcache_area) add r1, r0, r1 1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry mcr p15, 0, r0, c7, c6, 1 @ invalidate D entry @@ -311,6 +317,7 @@ ENTRY(xscale_flush_kern_dcache_area) mcr p15, 0, r0, c7, c5, 0 @ Invalidate I cache & BTB mcr p15, 0, r0, c7, c10, 4 @ Drain Write (& Fill) Buffer ret lr +SYM_FUNC_END(xscale_flush_kern_dcache_area) /* * dma_inv_range(start, end) @@ -361,7 +368,7 @@ xscale_dma_clean_range: * - start - virtual start address * - end - virtual end address */ -ENTRY(xscale_dma_flush_range) +SYM_TYPED_FUNC_START(xscale_dma_flush_range) bic r0, r0, #CACHELINESIZE - 1 1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry mcr p15, 0, r0, c7, c6, 1 @ invalidate D entry @@ -370,6 +377,7 @@ ENTRY(xscale_dma_flush_range) blo 1b mcr p15, 0, r0, c7, c10, 4 @ Drain Write (& Fill) Buffer ret lr +SYM_FUNC_END(xscale_dma_flush_range) /* * dma_map_area(start, size, dir) @@ -377,13 +385,13 @@ ENTRY(xscale_dma_flush_range) * - size - size of region * - dir - DMA direction */ -ENTRY(xscale_dma_map_area) +SYM_TYPED_FUNC_START(xscale_dma_map_area) add r1, r1, r0 cmp r2, #DMA_TO_DEVICE beq xscale_dma_clean_range bcs xscale_dma_inv_range b xscale_dma_flush_range -ENDPROC(xscale_dma_map_area) +SYM_FUNC_END(xscale_dma_map_area) /* * dma_map_area(start, size, dir) @@ -391,12 +399,12 @@ ENDPROC(xscale_dma_map_area) * - size - size of region * - dir - DMA direction */ -ENTRY(xscale_80200_A0_A1_dma_map_area) +SYM_TYPED_FUNC_START(xscale_80200_A0_A1_dma_map_area) add r1, r1, r0 teq r2, #DMA_TO_DEVICE beq xscale_dma_clean_range b xscale_dma_flush_range -ENDPROC(xscale_80200_A0_A1_dma_map_area) +SYM_FUNC_END(xscale_80200_A0_A1_dma_map_area) /* * dma_unmap_area(start, size, dir) @@ -404,9 +412,9 @@ ENDPROC(xscale_80200_A0_A1_dma_map_area) * - size - size of region * - dir - DMA direction */ -ENTRY(xscale_dma_unmap_area) +SYM_TYPED_FUNC_START(xscale_dma_unmap_area) ret lr -ENDPROC(xscale_dma_unmap_area) +SYM_FUNC_END(xscale_dma_unmap_area) .globl xscale_flush_kern_cache_louis .equ xscale_flush_kern_cache_louis, xscale_flush_kern_cache_all -- cgit v1.2.3 From 2074beebacfc09b6c47dce1f573a67131c70ec9a Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Tue, 23 Apr 2024 08:31:41 +0100 Subject: ARM: 9386/2: mm: Use symbol alias for cache functions The cache functions to flush user cache (*_flush_user_cache_all) are in many cases just a branch to the corresponfing userspace or kernelspace function. These functions also have the same arguments. Simplify these by using SYM_FUNC_ALIAS() in all affected sites. The NOP cache has very many similar calls which are just returns, but it would be confusing to use aliases here, so leave all the explicit returns and drop a comment on why we are not using aliases. Reviewed-by: Sami Tolvanen Signed-off-by: Linus Walleij Signed-off-by: Russell King (Oracle) --- arch/arm/mm/cache-fa.S | 4 +--- arch/arm/mm/cache-nop.S | 4 ++++ arch/arm/mm/cache-v4.S | 4 +--- arch/arm/mm/cache-v4wb.S | 4 +--- arch/arm/mm/cache-v4wt.S | 4 +--- arch/arm/mm/proc-arm1020.S | 4 +--- arch/arm/mm/proc-arm1020e.S | 4 +--- arch/arm/mm/proc-arm1022.S | 4 +--- arch/arm/mm/proc-arm1026.S | 4 +--- arch/arm/mm/proc-arm920.S | 4 +--- arch/arm/mm/proc-arm922.S | 4 +--- arch/arm/mm/proc-arm925.S | 4 +--- arch/arm/mm/proc-arm926.S | 4 +--- arch/arm/mm/proc-arm940.S | 4 +--- arch/arm/mm/proc-arm946.S | 4 +--- arch/arm/mm/proc-feroceon.S | 4 +--- arch/arm/mm/proc-mohawk.S | 4 +--- arch/arm/mm/proc-xsc3.S | 4 +--- arch/arm/mm/proc-xscale.S | 4 +--- 19 files changed, 22 insertions(+), 54 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mm/cache-fa.S b/arch/arm/mm/cache-fa.S index c3642d5daf38..ecd08bf440cb 100644 --- a/arch/arm/mm/cache-fa.S +++ b/arch/arm/mm/cache-fa.S @@ -52,9 +52,7 @@ SYM_FUNC_END(fa_flush_icache_all) * Clean and invalidate all cache entries in a particular address * space. */ -SYM_TYPED_FUNC_START(fa_flush_user_cache_all) - b fa_flush_kern_cache_all -SYM_FUNC_END(fa_flush_user_cache_all) +SYM_FUNC_ALIAS(fa_flush_user_cache_all, fa_flush_kern_cache_all) /* * flush_kern_cache_all() diff --git a/arch/arm/mm/cache-nop.S b/arch/arm/mm/cache-nop.S index 56e94091a55f..cd191aa90313 100644 --- a/arch/arm/mm/cache-nop.S +++ b/arch/arm/mm/cache-nop.S @@ -6,6 +6,10 @@ #include "proc-macros.S" +/* + * These are all open-coded instead of aliased, to make clear + * what is going on here: all functions are stubbed out. + */ SYM_TYPED_FUNC_START(nop_flush_icache_all) ret lr SYM_FUNC_END(nop_flush_icache_all) diff --git a/arch/arm/mm/cache-v4.S b/arch/arm/mm/cache-v4.S index 22d9c9d9e0d7..f7b7e498d3b6 100644 --- a/arch/arm/mm/cache-v4.S +++ b/arch/arm/mm/cache-v4.S @@ -28,9 +28,7 @@ SYM_FUNC_END(v4_flush_icache_all) * * - mm - mm_struct describing address space */ -SYM_TYPED_FUNC_START(v4_flush_user_cache_all) - b v4_flush_kern_cache_all -SYM_FUNC_END(v4_flush_user_cache_all) +SYM_FUNC_ALIAS(v4_flush_user_cache_all, v4_flush_kern_cache_all) /* * flush_kern_cache_all() diff --git a/arch/arm/mm/cache-v4wb.S b/arch/arm/mm/cache-v4wb.S index 0d97b594e23f..00488108a873 100644 --- a/arch/arm/mm/cache-v4wb.S +++ b/arch/arm/mm/cache-v4wb.S @@ -66,9 +66,7 @@ SYM_FUNC_END(v4wb_flush_icache_all) * Clean and invalidate all cache entries in a particular address * space. */ -SYM_TYPED_FUNC_START(v4wb_flush_user_cache_all) - b v4wb_flush_kern_cache_all -SYM_FUNC_END(v4wb_flush_user_cache_all) +SYM_FUNC_ALIAS(v4wb_flush_user_cache_all, v4wb_flush_kern_cache_all) /* * flush_kern_cache_all() diff --git a/arch/arm/mm/cache-v4wt.S b/arch/arm/mm/cache-v4wt.S index eee6d8f06b4d..573f65271cbb 100644 --- a/arch/arm/mm/cache-v4wt.S +++ b/arch/arm/mm/cache-v4wt.S @@ -56,9 +56,7 @@ SYM_FUNC_END(v4wt_flush_icache_all) * Invalidate all cache entries in a particular address * space. */ -SYM_TYPED_FUNC_START(v4wt_flush_user_cache_all) - b v4wt_flush_kern_cache_all -SYM_FUNC_END(v4wt_flush_user_cache_all) +SYM_FUNC_ALIAS(v4wt_flush_user_cache_all, v4wt_flush_kern_cache_all) /* * flush_kern_cache_all() diff --git a/arch/arm/mm/proc-arm1020.S b/arch/arm/mm/proc-arm1020.S index a3f99e1c1186..2c873e65a5b9 100644 --- a/arch/arm/mm/proc-arm1020.S +++ b/arch/arm/mm/proc-arm1020.S @@ -127,9 +127,7 @@ SYM_FUNC_END(arm1020_flush_icache_all) * Invalidate all cache entries in a particular address * space. */ -SYM_TYPED_FUNC_START(arm1020_flush_user_cache_all) - b arm1020_flush_kern_cache_all -SYM_FUNC_END(arm1020_flush_user_cache_all) +SYM_FUNC_ALIAS(arm1020_flush_user_cache_all, arm1020_flush_kern_cache_all) /* * flush_kern_cache_all() diff --git a/arch/arm/mm/proc-arm1020e.S b/arch/arm/mm/proc-arm1020e.S index 64c63eb5d830..d8217737a60b 100644 --- a/arch/arm/mm/proc-arm1020e.S +++ b/arch/arm/mm/proc-arm1020e.S @@ -127,9 +127,7 @@ SYM_FUNC_END(arm1020e_flush_icache_all) * Invalidate all cache entries in a particular address * space. */ -SYM_TYPED_FUNC_START(arm1020e_flush_user_cache_all) - b arm1020e_flush_kern_cache_all -SYM_FUNC_END(arm1020e_flush_user_cache_all) +SYM_FUNC_ALIAS(arm1020e_flush_user_cache_all, arm1020e_flush_kern_cache_all) /* * flush_kern_cache_all() diff --git a/arch/arm/mm/proc-arm1022.S b/arch/arm/mm/proc-arm1022.S index e170497353ae..5348cebe7e71 100644 --- a/arch/arm/mm/proc-arm1022.S +++ b/arch/arm/mm/proc-arm1022.S @@ -127,9 +127,7 @@ SYM_FUNC_END(arm1022_flush_icache_all) * Invalidate all cache entries in a particular address * space. */ -SYM_TYPED_FUNC_START(arm1022_flush_user_cache_all) - b arm1022_flush_kern_cache_all -SYM_FUNC_END(arm1022_flush_user_cache_all) +SYM_FUNC_ALIAS(arm1022_flush_user_cache_all, arm1022_flush_kern_cache_all) /* * flush_kern_cache_all() diff --git a/arch/arm/mm/proc-arm1026.S b/arch/arm/mm/proc-arm1026.S index 4b5a4849ad85..466f861d750c 100644 --- a/arch/arm/mm/proc-arm1026.S +++ b/arch/arm/mm/proc-arm1026.S @@ -127,9 +127,7 @@ SYM_FUNC_END(arm1026_flush_icache_all) * Invalidate all cache entries in a particular address * space. */ -SYM_TYPED_FUNC_START(arm1026_flush_user_cache_all) - b arm1026_flush_kern_cache_all -SYM_FUNC_END(arm1026_flush_user_cache_all) +SYM_FUNC_ALIAS(arm1026_flush_user_cache_all, arm1026_flush_kern_cache_all) /* * flush_kern_cache_all() diff --git a/arch/arm/mm/proc-arm920.S b/arch/arm/mm/proc-arm920.S index fbf8937eae85..6a6e26850a54 100644 --- a/arch/arm/mm/proc-arm920.S +++ b/arch/arm/mm/proc-arm920.S @@ -116,9 +116,7 @@ SYM_FUNC_END(arm920_flush_icache_all) * Invalidate all cache entries in a particular address * space. */ -SYM_TYPED_FUNC_START(arm920_flush_user_cache_all) - b arm920_flush_kern_cache_all -SYM_FUNC_END(arm920_flush_user_cache_all) +SYM_FUNC_ALIAS(arm920_flush_user_cache_all, arm920_flush_kern_cache_all) /* * flush_kern_cache_all() diff --git a/arch/arm/mm/proc-arm922.S b/arch/arm/mm/proc-arm922.S index ccfff2b65f49..56230e547762 100644 --- a/arch/arm/mm/proc-arm922.S +++ b/arch/arm/mm/proc-arm922.S @@ -118,9 +118,7 @@ SYM_FUNC_END(arm922_flush_icache_all) * Clean and invalidate all cache entries in a particular * address space. */ -SYM_TYPED_FUNC_START(arm922_flush_user_cache_all) - b arm922_flush_kern_cache_all -SYM_FUNC_END(arm922_flush_user_cache_all) +SYM_FUNC_ALIAS(arm922_flush_user_cache_all, arm922_flush_kern_cache_all) /* * flush_kern_cache_all() diff --git a/arch/arm/mm/proc-arm925.S b/arch/arm/mm/proc-arm925.S index d0f73242f70a..aeb4ee16dcc9 100644 --- a/arch/arm/mm/proc-arm925.S +++ b/arch/arm/mm/proc-arm925.S @@ -151,9 +151,7 @@ SYM_FUNC_END(arm925_flush_icache_all) * Clean and invalidate all cache entries in a particular * address space. */ -SYM_TYPED_FUNC_START(arm925_flush_user_cache_all) - b arm925_flush_kern_cache_all -SYM_FUNC_END(arm925_flush_user_cache_all) +SYM_FUNC_ALIAS(arm925_flush_user_cache_all, arm925_flush_kern_cache_all) /* * flush_kern_cache_all() diff --git a/arch/arm/mm/proc-arm926.S b/arch/arm/mm/proc-arm926.S index 00f953dee122..221aada5d288 100644 --- a/arch/arm/mm/proc-arm926.S +++ b/arch/arm/mm/proc-arm926.S @@ -117,9 +117,7 @@ SYM_FUNC_END(arm926_flush_icache_all) * Clean and invalidate all cache entries in a particular * address space. */ -SYM_TYPED_FUNC_START(arm926_flush_user_cache_all) - b arm926_flush_kern_cache_all -SYM_FUNC_END(arm926_flush_user_cache_all) +SYM_FUNC_ALIAS(arm926_flush_user_cache_all, arm926_flush_kern_cache_all) /* * flush_kern_cache_all() diff --git a/arch/arm/mm/proc-arm940.S b/arch/arm/mm/proc-arm940.S index 7e32ec271e8a..23646bf801e1 100644 --- a/arch/arm/mm/proc-arm940.S +++ b/arch/arm/mm/proc-arm940.S @@ -81,9 +81,7 @@ SYM_FUNC_END(arm940_flush_icache_all) /* * flush_user_cache_all() */ -SYM_TYPED_FUNC_START(arm940_flush_user_cache_all) - b arm940_flush_kern_cache_all -SYM_FUNC_END(arm940_flush_user_cache_all) +SYM_FUNC_ALIAS(arm940_flush_user_cache_all, arm940_flush_kern_cache_all) /* * flush_kern_cache_all() diff --git a/arch/arm/mm/proc-arm946.S b/arch/arm/mm/proc-arm946.S index 4fc883572e19..763a5a9bc735 100644 --- a/arch/arm/mm/proc-arm946.S +++ b/arch/arm/mm/proc-arm946.S @@ -88,9 +88,7 @@ SYM_FUNC_END(arm946_flush_icache_all) /* * flush_user_cache_all() */ -SYM_TYPED_FUNC_START(arm946_flush_user_cache_all) - b arm946_flush_kern_cache_all -SYM_FUNC_END(arm946_flush_user_cache_all) +SYM_FUNC_ALIAS(arm946_flush_user_cache_all, arm946_flush_kern_cache_all) /* * flush_kern_cache_all() diff --git a/arch/arm/mm/proc-feroceon.S b/arch/arm/mm/proc-feroceon.S index ee936c23cac5..d31fe58bf475 100644 --- a/arch/arm/mm/proc-feroceon.S +++ b/arch/arm/mm/proc-feroceon.S @@ -136,9 +136,7 @@ SYM_FUNC_END(feroceon_flush_icache_all) * address space. */ .align 5 -SYM_TYPED_FUNC_START(feroceon_flush_user_cache_all) - b feroceon_flush_kern_cache_all -SYM_FUNC_END(feroceon_flush_user_cache_all) +SYM_FUNC_ALIAS(feroceon_flush_user_cache_all, feroceon_flush_kern_cache_all) /* * flush_kern_cache_all() diff --git a/arch/arm/mm/proc-mohawk.S b/arch/arm/mm/proc-mohawk.S index 519b7ff2c589..949e2f254779 100644 --- a/arch/arm/mm/proc-mohawk.S +++ b/arch/arm/mm/proc-mohawk.S @@ -100,9 +100,7 @@ SYM_FUNC_END(mohawk_flush_icache_all) * Clean and invalidate all cache entries in a particular * address space. */ -SYM_TYPED_FUNC_START(mohawk_flush_user_cache_all) - b mohawk_flush_kern_cache_all -SYM_FUNC_END(mohawk_flush_user_cache_all) +SYM_FUNC_ALIAS(mohawk_flush_user_cache_all, mohawk_flush_kern_cache_all) /* * flush_kern_cache_all() diff --git a/arch/arm/mm/proc-xsc3.S b/arch/arm/mm/proc-xsc3.S index f08b3fce4c95..ac3d99b49cc0 100644 --- a/arch/arm/mm/proc-xsc3.S +++ b/arch/arm/mm/proc-xsc3.S @@ -157,9 +157,7 @@ SYM_FUNC_END(xsc3_flush_icache_all) * Invalidate all cache entries in a particular address * space. */ -SYM_TYPED_FUNC_START(xsc3_flush_user_cache_all) - b xsc3_flush_kern_cache_all -SYM_FUNC_END(xsc3_flush_user_cache_all) +SYM_FUNC_ALIAS(xsc3_flush_user_cache_all, xsc3_flush_kern_cache_all) /* * flush_kern_cache_all() diff --git a/arch/arm/mm/proc-xscale.S b/arch/arm/mm/proc-xscale.S index 3e427db18d5b..05d9ed952983 100644 --- a/arch/arm/mm/proc-xscale.S +++ b/arch/arm/mm/proc-xscale.S @@ -199,9 +199,7 @@ SYM_FUNC_END(xscale_flush_icache_all) * Invalidate all cache entries in a particular address * space. */ -SYM_TYPED_FUNC_START(xscale_flush_user_cache_all) - b xscale_flush_kern_cache_all -SYM_FUNC_END(xscale_flush_user_cache_all) +SYM_FUNC_ALIAS(xscale_flush_user_cache_all, xscale_flush_kern_cache_all) /* * flush_kern_cache_all() -- cgit v1.2.3 From b4d20eff64d5912b95d7a397057aba9c8e9c9a8a Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Tue, 23 Apr 2024 08:43:14 +0100 Subject: ARM: 9387/2: mm: Rewrite cacheflush vtables in CFI safe C Instead of defining all cache flush operations with an assembly macro in proc-macros.S, provide an explicit struct cpu_cache_fns for each CPU cache type in mm/cache.c. As a side effect from rewriting the vtables in C, we can avoid the aliasing for the "louis" cache callback, instead we can just assign the NN_flush_kern_cache_all() function to the louis callback in the C vtable. As the louis cache callback is called explicitly (not through the vtable) if we only have one type of cache support compiled in, we need an ifdef quirk for this in the !MULTI_CACHE case. Feroceon and XScale have some dma mapping quirk, in this case we can just define two structs and assign all but one callback to the main implementation; since each of them invoked define_cache_functions twice they require MULTI_CACHE by definition so the compiled-in shortcut is not used on these variants. Tested-by: Kees Cook Reviewed-by: Sami Tolvanen Signed-off-by: Linus Walleij Signed-off-by: Russell King (Oracle) --- arch/arm/include/asm/glue-cache.h | 28 +- arch/arm/mm/Makefile | 1 + arch/arm/mm/cache-b15-rac.c | 1 + arch/arm/mm/cache-fa.S | 8 - arch/arm/mm/cache-nop.S | 8 - arch/arm/mm/cache-v4.S | 8 - arch/arm/mm/cache-v4wb.S | 8 - arch/arm/mm/cache-v4wt.S | 8 - arch/arm/mm/cache-v6.S | 8 - arch/arm/mm/cache-v7.S | 25 -- arch/arm/mm/cache-v7m.S | 8 - arch/arm/mm/cache.c | 663 ++++++++++++++++++++++++++++++++++++++ arch/arm/mm/proc-arm1020.S | 6 - arch/arm/mm/proc-arm1020e.S | 6 - arch/arm/mm/proc-arm1022.S | 6 - arch/arm/mm/proc-arm1026.S | 6 - arch/arm/mm/proc-arm920.S | 5 - arch/arm/mm/proc-arm922.S | 6 - arch/arm/mm/proc-arm925.S | 6 - arch/arm/mm/proc-arm926.S | 6 - arch/arm/mm/proc-arm940.S | 6 - arch/arm/mm/proc-arm946.S | 6 - arch/arm/mm/proc-feroceon.S | 27 -- arch/arm/mm/proc-macros.S | 18 -- arch/arm/mm/proc-mohawk.S | 6 - arch/arm/mm/proc-xsc3.S | 6 - arch/arm/mm/proc-xscale.S | 57 +--- 27 files changed, 688 insertions(+), 259 deletions(-) create mode 100644 arch/arm/mm/cache.c (limited to 'arch/arm') diff --git a/arch/arm/include/asm/glue-cache.h b/arch/arm/include/asm/glue-cache.h index 724f8dac1e5b..4186fbf7341f 100644 --- a/arch/arm/include/asm/glue-cache.h +++ b/arch/arm/include/asm/glue-cache.h @@ -118,6 +118,10 @@ # define MULTI_CACHE 1 #endif +#ifdef CONFIG_CPU_CACHE_NOP +# define MULTI_CACHE 1 +#endif + #if defined(CONFIG_CPU_V7M) # define MULTI_CACHE 1 #endif @@ -126,29 +130,15 @@ #error Unknown cache maintenance model #endif -#ifndef __ASSEMBLER__ -static inline void nop_flush_icache_all(void) { } -static inline void nop_flush_kern_cache_all(void) { } -static inline void nop_flush_kern_cache_louis(void) { } -static inline void nop_flush_user_cache_all(void) { } -static inline void nop_flush_user_cache_range(unsigned long a, - unsigned long b, unsigned int c) { } - -static inline void nop_coherent_kern_range(unsigned long a, unsigned long b) { } -static inline int nop_coherent_user_range(unsigned long a, - unsigned long b) { return 0; } -static inline void nop_flush_kern_dcache_area(void *a, size_t s) { } - -static inline void nop_dma_flush_range(const void *a, const void *b) { } - -static inline void nop_dma_map_area(const void *s, size_t l, int f) { } -static inline void nop_dma_unmap_area(const void *s, size_t l, int f) { } -#endif - #ifndef MULTI_CACHE #define __cpuc_flush_icache_all __glue(_CACHE,_flush_icache_all) #define __cpuc_flush_kern_all __glue(_CACHE,_flush_kern_cache_all) +/* This function only has a dedicated assembly callback on the v7 cache */ +#ifdef CONFIG_CPU_CACHE_V7 #define __cpuc_flush_kern_louis __glue(_CACHE,_flush_kern_cache_louis) +#else +#define __cpuc_flush_kern_louis __glue(_CACHE,_flush_kern_cache_all) +#endif #define __cpuc_flush_user_all __glue(_CACHE,_flush_user_cache_all) #define __cpuc_flush_user_range __glue(_CACHE,_flush_user_cache_range) #define __cpuc_coherent_kern_range __glue(_CACHE,_coherent_kern_range) diff --git a/arch/arm/mm/Makefile b/arch/arm/mm/Makefile index cc8255fdf56e..17665381be96 100644 --- a/arch/arm/mm/Makefile +++ b/arch/arm/mm/Makefile @@ -45,6 +45,7 @@ obj-$(CONFIG_CPU_CACHE_V7) += cache-v7.o obj-$(CONFIG_CPU_CACHE_FA) += cache-fa.o obj-$(CONFIG_CPU_CACHE_NOP) += cache-nop.o obj-$(CONFIG_CPU_CACHE_V7M) += cache-v7m.o +obj-y += cache.o obj-$(CONFIG_CPU_COPY_V4WT) += copypage-v4wt.o obj-$(CONFIG_CPU_COPY_V4WB) += copypage-v4wb.o diff --git a/arch/arm/mm/cache-b15-rac.c b/arch/arm/mm/cache-b15-rac.c index 9c1172f26885..6f63b90f9e1a 100644 --- a/arch/arm/mm/cache-b15-rac.c +++ b/arch/arm/mm/cache-b15-rac.c @@ -5,6 +5,7 @@ * Copyright (C) 2015-2016 Broadcom */ +#include #include #include #include diff --git a/arch/arm/mm/cache-fa.S b/arch/arm/mm/cache-fa.S index ecd08bf440cb..db454033b76f 100644 --- a/arch/arm/mm/cache-fa.S +++ b/arch/arm/mm/cache-fa.S @@ -243,11 +243,3 @@ SYM_FUNC_END(fa_dma_map_area) SYM_TYPED_FUNC_START(fa_dma_unmap_area) ret lr SYM_FUNC_END(fa_dma_unmap_area) - - .globl fa_flush_kern_cache_louis - .equ fa_flush_kern_cache_louis, fa_flush_kern_cache_all - - __INITDATA - - @ define struct cpu_cache_fns (see and proc-macros.S) - define_cache_functions fa diff --git a/arch/arm/mm/cache-nop.S b/arch/arm/mm/cache-nop.S index cd191aa90313..f68dde2014ee 100644 --- a/arch/arm/mm/cache-nop.S +++ b/arch/arm/mm/cache-nop.S @@ -18,9 +18,6 @@ SYM_TYPED_FUNC_START(nop_flush_kern_cache_all) ret lr SYM_FUNC_END(nop_flush_kern_cache_all) - .globl nop_flush_kern_cache_louis - .equ nop_flush_kern_cache_louis, nop_flush_icache_all - SYM_TYPED_FUNC_START(nop_flush_user_cache_all) ret lr SYM_FUNC_END(nop_flush_user_cache_all) @@ -50,11 +47,6 @@ SYM_TYPED_FUNC_START(nop_dma_map_area) ret lr SYM_FUNC_END(nop_dma_map_area) - __INITDATA - - @ define struct cpu_cache_fns (see and proc-macros.S) - define_cache_functions nop - SYM_TYPED_FUNC_START(nop_dma_unmap_area) ret lr SYM_FUNC_END(nop_dma_unmap_area) diff --git a/arch/arm/mm/cache-v4.S b/arch/arm/mm/cache-v4.S index f7b7e498d3b6..0df97a610026 100644 --- a/arch/arm/mm/cache-v4.S +++ b/arch/arm/mm/cache-v4.S @@ -144,11 +144,3 @@ SYM_FUNC_END(v4_dma_unmap_area) SYM_TYPED_FUNC_START(v4_dma_map_area) ret lr SYM_FUNC_END(v4_dma_map_area) - - .globl v4_flush_kern_cache_louis - .equ v4_flush_kern_cache_louis, v4_flush_kern_cache_all - - __INITDATA - - @ define struct cpu_cache_fns (see and proc-macros.S) - define_cache_functions v4 diff --git a/arch/arm/mm/cache-v4wb.S b/arch/arm/mm/cache-v4wb.S index 00488108a873..1912f559968c 100644 --- a/arch/arm/mm/cache-v4wb.S +++ b/arch/arm/mm/cache-v4wb.S @@ -253,11 +253,3 @@ SYM_FUNC_END(v4wb_dma_map_area) SYM_TYPED_FUNC_START(v4wb_dma_unmap_area) ret lr SYM_FUNC_END(v4wb_dma_unmap_area) - - .globl v4wb_flush_kern_cache_louis - .equ v4wb_flush_kern_cache_louis, v4wb_flush_kern_cache_all - - __INITDATA - - @ define struct cpu_cache_fns (see and proc-macros.S) - define_cache_functions v4wb diff --git a/arch/arm/mm/cache-v4wt.S b/arch/arm/mm/cache-v4wt.S index 573f65271cbb..43b4275ab680 100644 --- a/arch/arm/mm/cache-v4wt.S +++ b/arch/arm/mm/cache-v4wt.S @@ -200,11 +200,3 @@ SYM_FUNC_END(v4wt_dma_unmap_area) SYM_TYPED_FUNC_START(v4wt_dma_map_area) ret lr SYM_FUNC_END(v4wt_dma_map_area) - - .globl v4wt_flush_kern_cache_louis - .equ v4wt_flush_kern_cache_louis, v4wt_flush_kern_cache_all - - __INITDATA - - @ define struct cpu_cache_fns (see and proc-macros.S) - define_cache_functions v4wt diff --git a/arch/arm/mm/cache-v6.S b/arch/arm/mm/cache-v6.S index 5c7549a49db5..86affd60d6d4 100644 --- a/arch/arm/mm/cache-v6.S +++ b/arch/arm/mm/cache-v6.S @@ -298,11 +298,3 @@ SYM_TYPED_FUNC_START(v6_dma_unmap_area) bne v6_dma_inv_range ret lr SYM_FUNC_END(v6_dma_unmap_area) - - .globl v6_flush_kern_cache_louis - .equ v6_flush_kern_cache_louis, v6_flush_kern_cache_all - - __INITDATA - - @ define struct cpu_cache_fns (see and proc-macros.S) - define_cache_functions v6 diff --git a/arch/arm/mm/cache-v7.S b/arch/arm/mm/cache-v7.S index 5908dd54de47..170b9ac72331 100644 --- a/arch/arm/mm/cache-v7.S +++ b/arch/arm/mm/cache-v7.S @@ -456,28 +456,3 @@ SYM_TYPED_FUNC_START(v7_dma_unmap_area) bne v7_dma_inv_range ret lr SYM_FUNC_END(v7_dma_unmap_area) - - __INITDATA - - @ define struct cpu_cache_fns (see and proc-macros.S) - define_cache_functions v7 - - /* The Broadcom Brahma-B15 read-ahead cache requires some modifications - * to the v7_cache_fns, we only override the ones we need - */ -#ifndef CONFIG_CACHE_B15_RAC - globl_equ b15_flush_kern_cache_all, v7_flush_kern_cache_all -#endif - globl_equ b15_flush_icache_all, v7_flush_icache_all - globl_equ b15_flush_kern_cache_louis, v7_flush_kern_cache_louis - globl_equ b15_flush_user_cache_all, v7_flush_user_cache_all - globl_equ b15_flush_user_cache_range, v7_flush_user_cache_range - globl_equ b15_coherent_kern_range, v7_coherent_kern_range - globl_equ b15_coherent_user_range, v7_coherent_user_range - globl_equ b15_flush_kern_dcache_area, v7_flush_kern_dcache_area - - globl_equ b15_dma_map_area, v7_dma_map_area - globl_equ b15_dma_unmap_area, v7_dma_unmap_area - globl_equ b15_dma_flush_range, v7_dma_flush_range - - define_cache_functions b15 diff --git a/arch/arm/mm/cache-v7m.S b/arch/arm/mm/cache-v7m.S index 5a62b9a224e1..4e670697eabc 100644 --- a/arch/arm/mm/cache-v7m.S +++ b/arch/arm/mm/cache-v7m.S @@ -447,11 +447,3 @@ SYM_TYPED_FUNC_START(v7m_dma_unmap_area) bne v7m_dma_inv_range ret lr SYM_FUNC_END(v7m_dma_unmap_area) - - .globl v7m_flush_kern_cache_louis - .equ v7m_flush_kern_cache_louis, v7m_flush_kern_cache_all - - __INITDATA - - @ define struct cpu_cache_fns (see and proc-macros.S) - define_cache_functions v7m diff --git a/arch/arm/mm/cache.c b/arch/arm/mm/cache.c new file mode 100644 index 000000000000..e6fbc599c9ed --- /dev/null +++ b/arch/arm/mm/cache.c @@ -0,0 +1,663 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * This file defines C prototypes for the low-level cache assembly functions + * and populates a vtable for each selected ARM CPU cache type. + */ + +#include +#include + +#ifdef CONFIG_CPU_CACHE_V4 +void v4_flush_icache_all(void); +void v4_flush_kern_cache_all(void); +void v4_flush_user_cache_all(void); +void v4_flush_user_cache_range(unsigned long, unsigned long, unsigned int); +void v4_coherent_kern_range(unsigned long, unsigned long); +int v4_coherent_user_range(unsigned long, unsigned long); +void v4_flush_kern_dcache_area(void *, size_t); +void v4_dma_map_area(const void *, size_t, int); +void v4_dma_unmap_area(const void *, size_t, int); +void v4_dma_flush_range(const void *, const void *); + +struct cpu_cache_fns v4_cache_fns __initconst = { + .flush_icache_all = v4_flush_icache_all, + .flush_kern_all = v4_flush_kern_cache_all, + .flush_kern_louis = v4_flush_kern_cache_all, + .flush_user_all = v4_flush_user_cache_all, + .flush_user_range = v4_flush_user_cache_range, + .coherent_kern_range = v4_coherent_kern_range, + .coherent_user_range = v4_coherent_user_range, + .flush_kern_dcache_area = v4_flush_kern_dcache_area, + .dma_map_area = v4_dma_map_area, + .dma_unmap_area = v4_dma_unmap_area, + .dma_flush_range = v4_dma_flush_range, +}; +#endif + +/* V4 write-back cache "V4WB" */ +#ifdef CONFIG_CPU_CACHE_V4WB +void v4wb_flush_icache_all(void); +void v4wb_flush_kern_cache_all(void); +void v4wb_flush_user_cache_all(void); +void v4wb_flush_user_cache_range(unsigned long, unsigned long, unsigned int); +void v4wb_coherent_kern_range(unsigned long, unsigned long); +int v4wb_coherent_user_range(unsigned long, unsigned long); +void v4wb_flush_kern_dcache_area(void *, size_t); +void v4wb_dma_map_area(const void *, size_t, int); +void v4wb_dma_unmap_area(const void *, size_t, int); +void v4wb_dma_flush_range(const void *, const void *); + +struct cpu_cache_fns v4wb_cache_fns __initconst = { + .flush_icache_all = v4wb_flush_icache_all, + .flush_kern_all = v4wb_flush_kern_cache_all, + .flush_kern_louis = v4wb_flush_kern_cache_all, + .flush_user_all = v4wb_flush_user_cache_all, + .flush_user_range = v4wb_flush_user_cache_range, + .coherent_kern_range = v4wb_coherent_kern_range, + .coherent_user_range = v4wb_coherent_user_range, + .flush_kern_dcache_area = v4wb_flush_kern_dcache_area, + .dma_map_area = v4wb_dma_map_area, + .dma_unmap_area = v4wb_dma_unmap_area, + .dma_flush_range = v4wb_dma_flush_range, +}; +#endif + +/* V4 write-through cache "V4WT" */ +#ifdef CONFIG_CPU_CACHE_V4WT +void v4wt_flush_icache_all(void); +void v4wt_flush_kern_cache_all(void); +void v4wt_flush_user_cache_all(void); +void v4wt_flush_user_cache_range(unsigned long, unsigned long, unsigned int); +void v4wt_coherent_kern_range(unsigned long, unsigned long); +int v4wt_coherent_user_range(unsigned long, unsigned long); +void v4wt_flush_kern_dcache_area(void *, size_t); +void v4wt_dma_map_area(const void *, size_t, int); +void v4wt_dma_unmap_area(const void *, size_t, int); +void v4wt_dma_flush_range(const void *, const void *); + +struct cpu_cache_fns v4wt_cache_fns __initconst = { + .flush_icache_all = v4wt_flush_icache_all, + .flush_kern_all = v4wt_flush_kern_cache_all, + .flush_kern_louis = v4wt_flush_kern_cache_all, + .flush_user_all = v4wt_flush_user_cache_all, + .flush_user_range = v4wt_flush_user_cache_range, + .coherent_kern_range = v4wt_coherent_kern_range, + .coherent_user_range = v4wt_coherent_user_range, + .flush_kern_dcache_area = v4wt_flush_kern_dcache_area, + .dma_map_area = v4wt_dma_map_area, + .dma_unmap_area = v4wt_dma_unmap_area, + .dma_flush_range = v4wt_dma_flush_range, +}; +#endif + +/* Faraday FA526 cache */ +#ifdef CONFIG_CPU_CACHE_FA +void fa_flush_icache_all(void); +void fa_flush_kern_cache_all(void); +void fa_flush_user_cache_all(void); +void fa_flush_user_cache_range(unsigned long, unsigned long, unsigned int); +void fa_coherent_kern_range(unsigned long, unsigned long); +int fa_coherent_user_range(unsigned long, unsigned long); +void fa_flush_kern_dcache_area(void *, size_t); +void fa_dma_map_area(const void *, size_t, int); +void fa_dma_unmap_area(const void *, size_t, int); +void fa_dma_flush_range(const void *, const void *); + +struct cpu_cache_fns fa_cache_fns __initconst = { + .flush_icache_all = fa_flush_icache_all, + .flush_kern_all = fa_flush_kern_cache_all, + .flush_kern_louis = fa_flush_kern_cache_all, + .flush_user_all = fa_flush_user_cache_all, + .flush_user_range = fa_flush_user_cache_range, + .coherent_kern_range = fa_coherent_kern_range, + .coherent_user_range = fa_coherent_user_range, + .flush_kern_dcache_area = fa_flush_kern_dcache_area, + .dma_map_area = fa_dma_map_area, + .dma_unmap_area = fa_dma_unmap_area, + .dma_flush_range = fa_dma_flush_range, +}; +#endif + +#ifdef CONFIG_CPU_CACHE_V6 +void v6_flush_icache_all(void); +void v6_flush_kern_cache_all(void); +void v6_flush_user_cache_all(void); +void v6_flush_user_cache_range(unsigned long, unsigned long, unsigned int); +void v6_coherent_kern_range(unsigned long, unsigned long); +int v6_coherent_user_range(unsigned long, unsigned long); +void v6_flush_kern_dcache_area(void *, size_t); +void v6_dma_map_area(const void *, size_t, int); +void v6_dma_unmap_area(const void *, size_t, int); +void v6_dma_flush_range(const void *, const void *); + +struct cpu_cache_fns v6_cache_fns __initconst = { + .flush_icache_all = v6_flush_icache_all, + .flush_kern_all = v6_flush_kern_cache_all, + .flush_kern_louis = v6_flush_kern_cache_all, + .flush_user_all = v6_flush_user_cache_all, + .flush_user_range = v6_flush_user_cache_range, + .coherent_kern_range = v6_coherent_kern_range, + .coherent_user_range = v6_coherent_user_range, + .flush_kern_dcache_area = v6_flush_kern_dcache_area, + .dma_map_area = v6_dma_map_area, + .dma_unmap_area = v6_dma_unmap_area, + .dma_flush_range = v6_dma_flush_range, +}; +#endif + +#ifdef CONFIG_CPU_CACHE_V7 +void v7_flush_icache_all(void); +void v7_flush_kern_cache_all(void); +void v7_flush_kern_cache_louis(void); +void v7_flush_user_cache_all(void); +void v7_flush_user_cache_range(unsigned long, unsigned long, unsigned int); +void v7_coherent_kern_range(unsigned long, unsigned long); +int v7_coherent_user_range(unsigned long, unsigned long); +void v7_flush_kern_dcache_area(void *, size_t); +void v7_dma_map_area(const void *, size_t, int); +void v7_dma_unmap_area(const void *, size_t, int); +void v7_dma_flush_range(const void *, const void *); + +struct cpu_cache_fns v7_cache_fns __initconst = { + .flush_icache_all = v7_flush_icache_all, + .flush_kern_all = v7_flush_kern_cache_all, + .flush_kern_louis = v7_flush_kern_cache_louis, + .flush_user_all = v7_flush_user_cache_all, + .flush_user_range = v7_flush_user_cache_range, + .coherent_kern_range = v7_coherent_kern_range, + .coherent_user_range = v7_coherent_user_range, + .flush_kern_dcache_area = v7_flush_kern_dcache_area, + .dma_map_area = v7_dma_map_area, + .dma_unmap_area = v7_dma_unmap_area, + .dma_flush_range = v7_dma_flush_range, +}; + +/* Special quirky cache flush function for Broadcom B15 v7 caches */ +void b15_flush_kern_cache_all(void); + +struct cpu_cache_fns b15_cache_fns __initconst = { + .flush_icache_all = v7_flush_icache_all, +#ifdef CONFIG_CACHE_B15_RAC + .flush_kern_all = b15_flush_kern_cache_all, +#else + .flush_kern_all = v7_flush_kern_cache_all, +#endif + .flush_kern_louis = v7_flush_kern_cache_louis, + .flush_user_all = v7_flush_user_cache_all, + .flush_user_range = v7_flush_user_cache_range, + .coherent_kern_range = v7_coherent_kern_range, + .coherent_user_range = v7_coherent_user_range, + .flush_kern_dcache_area = v7_flush_kern_dcache_area, + .dma_map_area = v7_dma_map_area, + .dma_unmap_area = v7_dma_unmap_area, + .dma_flush_range = v7_dma_flush_range, +}; +#endif + +/* The NOP cache is just a set of dummy stubs that by definition does nothing */ +#ifdef CONFIG_CPU_CACHE_NOP +void nop_flush_icache_all(void); +void nop_flush_kern_cache_all(void); +void nop_flush_user_cache_all(void); +void nop_flush_user_cache_range(unsigned long start, unsigned long end, unsigned int flags); +void nop_coherent_kern_range(unsigned long start, unsigned long end); +int nop_coherent_user_range(unsigned long, unsigned long); +void nop_flush_kern_dcache_area(void *kaddr, size_t size); +void nop_dma_map_area(const void *start, size_t size, int flags); +void nop_dma_unmap_area(const void *start, size_t size, int flags); +void nop_dma_flush_range(const void *start, const void *end); + +struct cpu_cache_fns nop_cache_fns __initconst = { + .flush_icache_all = nop_flush_icache_all, + .flush_kern_all = nop_flush_kern_cache_all, + .flush_kern_louis = nop_flush_kern_cache_all, + .flush_user_all = nop_flush_user_cache_all, + .flush_user_range = nop_flush_user_cache_range, + .coherent_kern_range = nop_coherent_kern_range, + .coherent_user_range = nop_coherent_user_range, + .flush_kern_dcache_area = nop_flush_kern_dcache_area, + .dma_map_area = nop_dma_map_area, + .dma_unmap_area = nop_dma_unmap_area, + .dma_flush_range = nop_dma_flush_range, +}; +#endif + +#ifdef CONFIG_CPU_CACHE_V7M +void v7m_flush_icache_all(void); +void v7m_flush_kern_cache_all(void); +void v7m_flush_user_cache_all(void); +void v7m_flush_user_cache_range(unsigned long, unsigned long, unsigned int); +void v7m_coherent_kern_range(unsigned long, unsigned long); +int v7m_coherent_user_range(unsigned long, unsigned long); +void v7m_flush_kern_dcache_area(void *, size_t); +void v7m_dma_map_area(const void *, size_t, int); +void v7m_dma_unmap_area(const void *, size_t, int); +void v7m_dma_flush_range(const void *, const void *); + +struct cpu_cache_fns v7m_cache_fns __initconst = { + .flush_icache_all = v7m_flush_icache_all, + .flush_kern_all = v7m_flush_kern_cache_all, + .flush_kern_louis = v7m_flush_kern_cache_all, + .flush_user_all = v7m_flush_user_cache_all, + .flush_user_range = v7m_flush_user_cache_range, + .coherent_kern_range = v7m_coherent_kern_range, + .coherent_user_range = v7m_coherent_user_range, + .flush_kern_dcache_area = v7m_flush_kern_dcache_area, + .dma_map_area = v7m_dma_map_area, + .dma_unmap_area = v7m_dma_unmap_area, + .dma_flush_range = v7m_dma_flush_range, +}; +#endif + +#ifdef CONFIG_CPU_ARM1020 +void arm1020_flush_icache_all(void); +void arm1020_flush_kern_cache_all(void); +void arm1020_flush_user_cache_all(void); +void arm1020_flush_user_cache_range(unsigned long, unsigned long, unsigned int); +void arm1020_coherent_kern_range(unsigned long, unsigned long); +int arm1020_coherent_user_range(unsigned long, unsigned long); +void arm1020_flush_kern_dcache_area(void *, size_t); +void arm1020_dma_map_area(const void *, size_t, int); +void arm1020_dma_unmap_area(const void *, size_t, int); +void arm1020_dma_flush_range(const void *, const void *); + +struct cpu_cache_fns arm1020_cache_fns __initconst = { + .flush_icache_all = arm1020_flush_icache_all, + .flush_kern_all = arm1020_flush_kern_cache_all, + .flush_kern_louis = arm1020_flush_kern_cache_all, + .flush_user_all = arm1020_flush_user_cache_all, + .flush_user_range = arm1020_flush_user_cache_range, + .coherent_kern_range = arm1020_coherent_kern_range, + .coherent_user_range = arm1020_coherent_user_range, + .flush_kern_dcache_area = arm1020_flush_kern_dcache_area, + .dma_map_area = arm1020_dma_map_area, + .dma_unmap_area = arm1020_dma_unmap_area, + .dma_flush_range = arm1020_dma_flush_range, +}; +#endif + +#ifdef CONFIG_CPU_ARM1020E +void arm1020e_flush_icache_all(void); +void arm1020e_flush_kern_cache_all(void); +void arm1020e_flush_user_cache_all(void); +void arm1020e_flush_user_cache_range(unsigned long, unsigned long, unsigned int); +void arm1020e_coherent_kern_range(unsigned long, unsigned long); +int arm1020e_coherent_user_range(unsigned long, unsigned long); +void arm1020e_flush_kern_dcache_area(void *, size_t); +void arm1020e_dma_map_area(const void *, size_t, int); +void arm1020e_dma_unmap_area(const void *, size_t, int); +void arm1020e_dma_flush_range(const void *, const void *); + +struct cpu_cache_fns arm1020e_cache_fns __initconst = { + .flush_icache_all = arm1020e_flush_icache_all, + .flush_kern_all = arm1020e_flush_kern_cache_all, + .flush_kern_louis = arm1020e_flush_kern_cache_all, + .flush_user_all = arm1020e_flush_user_cache_all, + .flush_user_range = arm1020e_flush_user_cache_range, + .coherent_kern_range = arm1020e_coherent_kern_range, + .coherent_user_range = arm1020e_coherent_user_range, + .flush_kern_dcache_area = arm1020e_flush_kern_dcache_area, + .dma_map_area = arm1020e_dma_map_area, + .dma_unmap_area = arm1020e_dma_unmap_area, + .dma_flush_range = arm1020e_dma_flush_range, +}; +#endif + +#ifdef CONFIG_CPU_ARM1022 +void arm1022_flush_icache_all(void); +void arm1022_flush_kern_cache_all(void); +void arm1022_flush_user_cache_all(void); +void arm1022_flush_user_cache_range(unsigned long, unsigned long, unsigned int); +void arm1022_coherent_kern_range(unsigned long, unsigned long); +int arm1022_coherent_user_range(unsigned long, unsigned long); +void arm1022_flush_kern_dcache_area(void *, size_t); +void arm1022_dma_map_area(const void *, size_t, int); +void arm1022_dma_unmap_area(const void *, size_t, int); +void arm1022_dma_flush_range(const void *, const void *); + +struct cpu_cache_fns arm1022_cache_fns __initconst = { + .flush_icache_all = arm1022_flush_icache_all, + .flush_kern_all = arm1022_flush_kern_cache_all, + .flush_kern_louis = arm1022_flush_kern_cache_all, + .flush_user_all = arm1022_flush_user_cache_all, + .flush_user_range = arm1022_flush_user_cache_range, + .coherent_kern_range = arm1022_coherent_kern_range, + .coherent_user_range = arm1022_coherent_user_range, + .flush_kern_dcache_area = arm1022_flush_kern_dcache_area, + .dma_map_area = arm1022_dma_map_area, + .dma_unmap_area = arm1022_dma_unmap_area, + .dma_flush_range = arm1022_dma_flush_range, +}; +#endif + +#ifdef CONFIG_CPU_ARM1026 +void arm1026_flush_icache_all(void); +void arm1026_flush_kern_cache_all(void); +void arm1026_flush_user_cache_all(void); +void arm1026_flush_user_cache_range(unsigned long, unsigned long, unsigned int); +void arm1026_coherent_kern_range(unsigned long, unsigned long); +int arm1026_coherent_user_range(unsigned long, unsigned long); +void arm1026_flush_kern_dcache_area(void *, size_t); +void arm1026_dma_map_area(const void *, size_t, int); +void arm1026_dma_unmap_area(const void *, size_t, int); +void arm1026_dma_flush_range(const void *, const void *); + +struct cpu_cache_fns arm1026_cache_fns __initconst = { + .flush_icache_all = arm1026_flush_icache_all, + .flush_kern_all = arm1026_flush_kern_cache_all, + .flush_kern_louis = arm1026_flush_kern_cache_all, + .flush_user_all = arm1026_flush_user_cache_all, + .flush_user_range = arm1026_flush_user_cache_range, + .coherent_kern_range = arm1026_coherent_kern_range, + .coherent_user_range = arm1026_coherent_user_range, + .flush_kern_dcache_area = arm1026_flush_kern_dcache_area, + .dma_map_area = arm1026_dma_map_area, + .dma_unmap_area = arm1026_dma_unmap_area, + .dma_flush_range = arm1026_dma_flush_range, +}; +#endif + +#if defined(CONFIG_CPU_ARM920T) && !defined(CONFIG_CPU_DCACHE_WRITETHROUGH) +void arm920_flush_icache_all(void); +void arm920_flush_kern_cache_all(void); +void arm920_flush_user_cache_all(void); +void arm920_flush_user_cache_range(unsigned long, unsigned long, unsigned int); +void arm920_coherent_kern_range(unsigned long, unsigned long); +int arm920_coherent_user_range(unsigned long, unsigned long); +void arm920_flush_kern_dcache_area(void *, size_t); +void arm920_dma_map_area(const void *, size_t, int); +void arm920_dma_unmap_area(const void *, size_t, int); +void arm920_dma_flush_range(const void *, const void *); + +struct cpu_cache_fns arm920_cache_fns __initconst = { + .flush_icache_all = arm920_flush_icache_all, + .flush_kern_all = arm920_flush_kern_cache_all, + .flush_kern_louis = arm920_flush_kern_cache_all, + .flush_user_all = arm920_flush_user_cache_all, + .flush_user_range = arm920_flush_user_cache_range, + .coherent_kern_range = arm920_coherent_kern_range, + .coherent_user_range = arm920_coherent_user_range, + .flush_kern_dcache_area = arm920_flush_kern_dcache_area, + .dma_map_area = arm920_dma_map_area, + .dma_unmap_area = arm920_dma_unmap_area, + .dma_flush_range = arm920_dma_flush_range, +}; +#endif + +#if defined(CONFIG_CPU_ARM922T) && !defined(CONFIG_CPU_DCACHE_WRITETHROUGH) +void arm922_flush_icache_all(void); +void arm922_flush_kern_cache_all(void); +void arm922_flush_user_cache_all(void); +void arm922_flush_user_cache_range(unsigned long, unsigned long, unsigned int); +void arm922_coherent_kern_range(unsigned long, unsigned long); +int arm922_coherent_user_range(unsigned long, unsigned long); +void arm922_flush_kern_dcache_area(void *, size_t); +void arm922_dma_map_area(const void *, size_t, int); +void arm922_dma_unmap_area(const void *, size_t, int); +void arm922_dma_flush_range(const void *, const void *); + +struct cpu_cache_fns arm922_cache_fns __initconst = { + .flush_icache_all = arm922_flush_icache_all, + .flush_kern_all = arm922_flush_kern_cache_all, + .flush_kern_louis = arm922_flush_kern_cache_all, + .flush_user_all = arm922_flush_user_cache_all, + .flush_user_range = arm922_flush_user_cache_range, + .coherent_kern_range = arm922_coherent_kern_range, + .coherent_user_range = arm922_coherent_user_range, + .flush_kern_dcache_area = arm922_flush_kern_dcache_area, + .dma_map_area = arm922_dma_map_area, + .dma_unmap_area = arm922_dma_unmap_area, + .dma_flush_range = arm922_dma_flush_range, +}; +#endif + +#ifdef CONFIG_CPU_ARM925T +void arm925_flush_icache_all(void); +void arm925_flush_kern_cache_all(void); +void arm925_flush_user_cache_all(void); +void arm925_flush_user_cache_range(unsigned long, unsigned long, unsigned int); +void arm925_coherent_kern_range(unsigned long, unsigned long); +int arm925_coherent_user_range(unsigned long, unsigned long); +void arm925_flush_kern_dcache_area(void *, size_t); +void arm925_dma_map_area(const void *, size_t, int); +void arm925_dma_unmap_area(const void *, size_t, int); +void arm925_dma_flush_range(const void *, const void *); + +struct cpu_cache_fns arm925_cache_fns __initconst = { + .flush_icache_all = arm925_flush_icache_all, + .flush_kern_all = arm925_flush_kern_cache_all, + .flush_kern_louis = arm925_flush_kern_cache_all, + .flush_user_all = arm925_flush_user_cache_all, + .flush_user_range = arm925_flush_user_cache_range, + .coherent_kern_range = arm925_coherent_kern_range, + .coherent_user_range = arm925_coherent_user_range, + .flush_kern_dcache_area = arm925_flush_kern_dcache_area, + .dma_map_area = arm925_dma_map_area, + .dma_unmap_area = arm925_dma_unmap_area, + .dma_flush_range = arm925_dma_flush_range, +}; +#endif + +#ifdef CONFIG_CPU_ARM926T +void arm926_flush_icache_all(void); +void arm926_flush_kern_cache_all(void); +void arm926_flush_user_cache_all(void); +void arm926_flush_user_cache_range(unsigned long, unsigned long, unsigned int); +void arm926_coherent_kern_range(unsigned long, unsigned long); +int arm926_coherent_user_range(unsigned long, unsigned long); +void arm926_flush_kern_dcache_area(void *, size_t); +void arm926_dma_map_area(const void *, size_t, int); +void arm926_dma_unmap_area(const void *, size_t, int); +void arm926_dma_flush_range(const void *, const void *); + +struct cpu_cache_fns arm926_cache_fns __initconst = { + .flush_icache_all = arm926_flush_icache_all, + .flush_kern_all = arm926_flush_kern_cache_all, + .flush_kern_louis = arm926_flush_kern_cache_all, + .flush_user_all = arm926_flush_user_cache_all, + .flush_user_range = arm926_flush_user_cache_range, + .coherent_kern_range = arm926_coherent_kern_range, + .coherent_user_range = arm926_coherent_user_range, + .flush_kern_dcache_area = arm926_flush_kern_dcache_area, + .dma_map_area = arm926_dma_map_area, + .dma_unmap_area = arm926_dma_unmap_area, + .dma_flush_range = arm926_dma_flush_range, +}; +#endif + +#ifdef CONFIG_CPU_ARM940T +void arm940_flush_icache_all(void); +void arm940_flush_kern_cache_all(void); +void arm940_flush_user_cache_all(void); +void arm940_flush_user_cache_range(unsigned long, unsigned long, unsigned int); +void arm940_coherent_kern_range(unsigned long, unsigned long); +int arm940_coherent_user_range(unsigned long, unsigned long); +void arm940_flush_kern_dcache_area(void *, size_t); +void arm940_dma_map_area(const void *, size_t, int); +void arm940_dma_unmap_area(const void *, size_t, int); +void arm940_dma_flush_range(const void *, const void *); + +struct cpu_cache_fns arm940_cache_fns __initconst = { + .flush_icache_all = arm940_flush_icache_all, + .flush_kern_all = arm940_flush_kern_cache_all, + .flush_kern_louis = arm940_flush_kern_cache_all, + .flush_user_all = arm940_flush_user_cache_all, + .flush_user_range = arm940_flush_user_cache_range, + .coherent_kern_range = arm940_coherent_kern_range, + .coherent_user_range = arm940_coherent_user_range, + .flush_kern_dcache_area = arm940_flush_kern_dcache_area, + .dma_map_area = arm940_dma_map_area, + .dma_unmap_area = arm940_dma_unmap_area, + .dma_flush_range = arm940_dma_flush_range, +}; +#endif + +#ifdef CONFIG_CPU_ARM946E +void arm946_flush_icache_all(void); +void arm946_flush_kern_cache_all(void); +void arm946_flush_user_cache_all(void); +void arm946_flush_user_cache_range(unsigned long, unsigned long, unsigned int); +void arm946_coherent_kern_range(unsigned long, unsigned long); +int arm946_coherent_user_range(unsigned long, unsigned long); +void arm946_flush_kern_dcache_area(void *, size_t); +void arm946_dma_map_area(const void *, size_t, int); +void arm946_dma_unmap_area(const void *, size_t, int); +void arm946_dma_flush_range(const void *, const void *); + +struct cpu_cache_fns arm946_cache_fns __initconst = { + .flush_icache_all = arm946_flush_icache_all, + .flush_kern_all = arm946_flush_kern_cache_all, + .flush_kern_louis = arm946_flush_kern_cache_all, + .flush_user_all = arm946_flush_user_cache_all, + .flush_user_range = arm946_flush_user_cache_range, + .coherent_kern_range = arm946_coherent_kern_range, + .coherent_user_range = arm946_coherent_user_range, + .flush_kern_dcache_area = arm946_flush_kern_dcache_area, + .dma_map_area = arm946_dma_map_area, + .dma_unmap_area = arm946_dma_unmap_area, + .dma_flush_range = arm946_dma_flush_range, +}; +#endif + +#ifdef CONFIG_CPU_XSCALE +void xscale_flush_icache_all(void); +void xscale_flush_kern_cache_all(void); +void xscale_flush_user_cache_all(void); +void xscale_flush_user_cache_range(unsigned long, unsigned long, unsigned int); +void xscale_coherent_kern_range(unsigned long, unsigned long); +int xscale_coherent_user_range(unsigned long, unsigned long); +void xscale_flush_kern_dcache_area(void *, size_t); +void xscale_dma_map_area(const void *, size_t, int); +void xscale_dma_unmap_area(const void *, size_t, int); +void xscale_dma_flush_range(const void *, const void *); + +struct cpu_cache_fns xscale_cache_fns __initconst = { + .flush_icache_all = xscale_flush_icache_all, + .flush_kern_all = xscale_flush_kern_cache_all, + .flush_kern_louis = xscale_flush_kern_cache_all, + .flush_user_all = xscale_flush_user_cache_all, + .flush_user_range = xscale_flush_user_cache_range, + .coherent_kern_range = xscale_coherent_kern_range, + .coherent_user_range = xscale_coherent_user_range, + .flush_kern_dcache_area = xscale_flush_kern_dcache_area, + .dma_map_area = xscale_dma_map_area, + .dma_unmap_area = xscale_dma_unmap_area, + .dma_flush_range = xscale_dma_flush_range, +}; + +/* The 80200 A0 and A1 need a special quirk for dma_map_area() */ +void xscale_80200_A0_A1_dma_map_area(const void *, size_t, int); + +struct cpu_cache_fns xscale_80200_A0_A1_cache_fns __initconst = { + .flush_icache_all = xscale_flush_icache_all, + .flush_kern_all = xscale_flush_kern_cache_all, + .flush_kern_louis = xscale_flush_kern_cache_all, + .flush_user_all = xscale_flush_user_cache_all, + .flush_user_range = xscale_flush_user_cache_range, + .coherent_kern_range = xscale_coherent_kern_range, + .coherent_user_range = xscale_coherent_user_range, + .flush_kern_dcache_area = xscale_flush_kern_dcache_area, + .dma_map_area = xscale_80200_A0_A1_dma_map_area, + .dma_unmap_area = xscale_dma_unmap_area, + .dma_flush_range = xscale_dma_flush_range, +}; +#endif + +#ifdef CONFIG_CPU_XSC3 +void xsc3_flush_icache_all(void); +void xsc3_flush_kern_cache_all(void); +void xsc3_flush_user_cache_all(void); +void xsc3_flush_user_cache_range(unsigned long, unsigned long, unsigned int); +void xsc3_coherent_kern_range(unsigned long, unsigned long); +int xsc3_coherent_user_range(unsigned long, unsigned long); +void xsc3_flush_kern_dcache_area(void *, size_t); +void xsc3_dma_map_area(const void *, size_t, int); +void xsc3_dma_unmap_area(const void *, size_t, int); +void xsc3_dma_flush_range(const void *, const void *); + +struct cpu_cache_fns xsc3_cache_fns __initconst = { + .flush_icache_all = xsc3_flush_icache_all, + .flush_kern_all = xsc3_flush_kern_cache_all, + .flush_kern_louis = xsc3_flush_kern_cache_all, + .flush_user_all = xsc3_flush_user_cache_all, + .flush_user_range = xsc3_flush_user_cache_range, + .coherent_kern_range = xsc3_coherent_kern_range, + .coherent_user_range = xsc3_coherent_user_range, + .flush_kern_dcache_area = xsc3_flush_kern_dcache_area, + .dma_map_area = xsc3_dma_map_area, + .dma_unmap_area = xsc3_dma_unmap_area, + .dma_flush_range = xsc3_dma_flush_range, +}; +#endif + +#ifdef CONFIG_CPU_MOHAWK +void mohawk_flush_icache_all(void); +void mohawk_flush_kern_cache_all(void); +void mohawk_flush_user_cache_all(void); +void mohawk_flush_user_cache_range(unsigned long, unsigned long, unsigned int); +void mohawk_coherent_kern_range(unsigned long, unsigned long); +int mohawk_coherent_user_range(unsigned long, unsigned long); +void mohawk_flush_kern_dcache_area(void *, size_t); +void mohawk_dma_map_area(const void *, size_t, int); +void mohawk_dma_unmap_area(const void *, size_t, int); +void mohawk_dma_flush_range(const void *, const void *); + +struct cpu_cache_fns mohawk_cache_fns __initconst = { + .flush_icache_all = mohawk_flush_icache_all, + .flush_kern_all = mohawk_flush_kern_cache_all, + .flush_kern_louis = mohawk_flush_kern_cache_all, + .flush_user_all = mohawk_flush_user_cache_all, + .flush_user_range = mohawk_flush_user_cache_range, + .coherent_kern_range = mohawk_coherent_kern_range, + .coherent_user_range = mohawk_coherent_user_range, + .flush_kern_dcache_area = mohawk_flush_kern_dcache_area, + .dma_map_area = mohawk_dma_map_area, + .dma_unmap_area = mohawk_dma_unmap_area, + .dma_flush_range = mohawk_dma_flush_range, +}; +#endif + +#ifdef CONFIG_CPU_FEROCEON +void feroceon_flush_icache_all(void); +void feroceon_flush_kern_cache_all(void); +void feroceon_flush_user_cache_all(void); +void feroceon_flush_user_cache_range(unsigned long, unsigned long, unsigned int); +void feroceon_coherent_kern_range(unsigned long, unsigned long); +int feroceon_coherent_user_range(unsigned long, unsigned long); +void feroceon_flush_kern_dcache_area(void *, size_t); +void feroceon_dma_map_area(const void *, size_t, int); +void feroceon_dma_unmap_area(const void *, size_t, int); +void feroceon_dma_flush_range(const void *, const void *); + +struct cpu_cache_fns feroceon_cache_fns __initconst = { + .flush_icache_all = feroceon_flush_icache_all, + .flush_kern_all = feroceon_flush_kern_cache_all, + .flush_kern_louis = feroceon_flush_kern_cache_all, + .flush_user_all = feroceon_flush_user_cache_all, + .flush_user_range = feroceon_flush_user_cache_range, + .coherent_kern_range = feroceon_coherent_kern_range, + .coherent_user_range = feroceon_coherent_user_range, + .flush_kern_dcache_area = feroceon_flush_kern_dcache_area, + .dma_map_area = feroceon_dma_map_area, + .dma_unmap_area = feroceon_dma_unmap_area, + .dma_flush_range = feroceon_dma_flush_range, +}; + +void feroceon_range_flush_kern_dcache_area(void *, size_t); +void feroceon_range_dma_map_area(const void *, size_t, int); +void feroceon_range_dma_flush_range(const void *, const void *); + +struct cpu_cache_fns feroceon_range_cache_fns __initconst = { + .flush_icache_all = feroceon_flush_icache_all, + .flush_kern_all = feroceon_flush_kern_cache_all, + .flush_kern_louis = feroceon_flush_kern_cache_all, + .flush_user_all = feroceon_flush_user_cache_all, + .flush_user_range = feroceon_flush_user_cache_range, + .coherent_kern_range = feroceon_coherent_kern_range, + .coherent_user_range = feroceon_coherent_user_range, + .flush_kern_dcache_area = feroceon_range_flush_kern_dcache_area, + .dma_map_area = feroceon_range_dma_map_area, + .dma_unmap_area = feroceon_dma_unmap_area, + .dma_flush_range = feroceon_range_dma_flush_range, +}; +#endif diff --git a/arch/arm/mm/proc-arm1020.S b/arch/arm/mm/proc-arm1020.S index 2c873e65a5b9..d0a57ff7846a 100644 --- a/arch/arm/mm/proc-arm1020.S +++ b/arch/arm/mm/proc-arm1020.S @@ -359,12 +359,6 @@ SYM_TYPED_FUNC_START(arm1020_dma_unmap_area) ret lr SYM_FUNC_END(arm1020_dma_unmap_area) - .globl arm1020_flush_kern_cache_louis - .equ arm1020_flush_kern_cache_louis, arm1020_flush_kern_cache_all - - @ define struct cpu_cache_fns (see and proc-macros.S) - define_cache_functions arm1020 - .align 5 ENTRY(cpu_arm1020_dcache_clean_area) #ifndef CONFIG_CPU_DCACHE_DISABLE diff --git a/arch/arm/mm/proc-arm1020e.S b/arch/arm/mm/proc-arm1020e.S index d8217737a60b..f636f42fde33 100644 --- a/arch/arm/mm/proc-arm1020e.S +++ b/arch/arm/mm/proc-arm1020e.S @@ -346,12 +346,6 @@ SYM_TYPED_FUNC_START(arm1020e_dma_unmap_area) ret lr SYM_FUNC_END(arm1020e_dma_unmap_area) - .globl arm1020e_flush_kern_cache_louis - .equ arm1020e_flush_kern_cache_louis, arm1020e_flush_kern_cache_all - - @ define struct cpu_cache_fns (see and proc-macros.S) - define_cache_functions arm1020e - .align 5 ENTRY(cpu_arm1020e_dcache_clean_area) #ifndef CONFIG_CPU_DCACHE_DISABLE diff --git a/arch/arm/mm/proc-arm1022.S b/arch/arm/mm/proc-arm1022.S index 5348cebe7e71..b5f40858458d 100644 --- a/arch/arm/mm/proc-arm1022.S +++ b/arch/arm/mm/proc-arm1022.S @@ -345,12 +345,6 @@ SYM_TYPED_FUNC_START(arm1022_dma_unmap_area) ret lr SYM_FUNC_END(arm1022_dma_unmap_area) - .globl arm1022_flush_kern_cache_louis - .equ arm1022_flush_kern_cache_louis, arm1022_flush_kern_cache_all - - @ define struct cpu_cache_fns (see and proc-macros.S) - define_cache_functions arm1022 - .align 5 ENTRY(cpu_arm1022_dcache_clean_area) #ifndef CONFIG_CPU_DCACHE_DISABLE diff --git a/arch/arm/mm/proc-arm1026.S b/arch/arm/mm/proc-arm1026.S index 466f861d750c..505faa86ea09 100644 --- a/arch/arm/mm/proc-arm1026.S +++ b/arch/arm/mm/proc-arm1026.S @@ -340,12 +340,6 @@ SYM_TYPED_FUNC_START(arm1026_dma_unmap_area) ret lr SYM_FUNC_END(arm1026_dma_unmap_area) - .globl arm1026_flush_kern_cache_louis - .equ arm1026_flush_kern_cache_louis, arm1026_flush_kern_cache_all - - @ define struct cpu_cache_fns (see and proc-macros.S) - define_cache_functions arm1026 - .align 5 ENTRY(cpu_arm1026_dcache_clean_area) #ifndef CONFIG_CPU_DCACHE_DISABLE diff --git a/arch/arm/mm/proc-arm920.S b/arch/arm/mm/proc-arm920.S index 6a6e26850a54..c25e9dd0b3dd 100644 --- a/arch/arm/mm/proc-arm920.S +++ b/arch/arm/mm/proc-arm920.S @@ -311,11 +311,6 @@ SYM_TYPED_FUNC_START(arm920_dma_unmap_area) ret lr SYM_FUNC_END(arm920_dma_unmap_area) - .globl arm920_flush_kern_cache_louis - .equ arm920_flush_kern_cache_louis, arm920_flush_kern_cache_all - - @ define struct cpu_cache_fns (see and proc-macros.S) - define_cache_functions arm920 #endif /* !CONFIG_CPU_DCACHE_WRITETHROUGH */ diff --git a/arch/arm/mm/proc-arm922.S b/arch/arm/mm/proc-arm922.S index 56230e547762..bd9bdcd68c12 100644 --- a/arch/arm/mm/proc-arm922.S +++ b/arch/arm/mm/proc-arm922.S @@ -313,12 +313,6 @@ SYM_TYPED_FUNC_START(arm922_dma_unmap_area) ret lr SYM_FUNC_END(arm922_dma_unmap_area) - .globl arm922_flush_kern_cache_louis - .equ arm922_flush_kern_cache_louis, arm922_flush_kern_cache_all - - @ define struct cpu_cache_fns (see and proc-macros.S) - define_cache_functions arm922 - #endif /* !CONFIG_CPU_DCACHE_WRITETHROUGH */ ENTRY(cpu_arm922_dcache_clean_area) diff --git a/arch/arm/mm/proc-arm925.S b/arch/arm/mm/proc-arm925.S index aeb4ee16dcc9..23477a509e48 100644 --- a/arch/arm/mm/proc-arm925.S +++ b/arch/arm/mm/proc-arm925.S @@ -368,12 +368,6 @@ SYM_TYPED_FUNC_START(arm925_dma_unmap_area) ret lr SYM_FUNC_END(arm925_dma_unmap_area) - .globl arm925_flush_kern_cache_louis - .equ arm925_flush_kern_cache_louis, arm925_flush_kern_cache_all - - @ define struct cpu_cache_fns (see and proc-macros.S) - define_cache_functions arm925 - ENTRY(cpu_arm925_dcache_clean_area) #ifndef CONFIG_CPU_DCACHE_WRITETHROUGH 1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry diff --git a/arch/arm/mm/proc-arm926.S b/arch/arm/mm/proc-arm926.S index 221aada5d288..335d18c850fc 100644 --- a/arch/arm/mm/proc-arm926.S +++ b/arch/arm/mm/proc-arm926.S @@ -331,12 +331,6 @@ SYM_TYPED_FUNC_START(arm926_dma_unmap_area) ret lr SYM_FUNC_END(arm926_dma_unmap_area) - .globl arm926_flush_kern_cache_louis - .equ arm926_flush_kern_cache_louis, arm926_flush_kern_cache_all - - @ define struct cpu_cache_fns (see and proc-macros.S) - define_cache_functions arm926 - ENTRY(cpu_arm926_dcache_clean_area) #ifndef CONFIG_CPU_DCACHE_WRITETHROUGH 1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry diff --git a/arch/arm/mm/proc-arm940.S b/arch/arm/mm/proc-arm940.S index 23646bf801e1..a429b06aa212 100644 --- a/arch/arm/mm/proc-arm940.S +++ b/arch/arm/mm/proc-arm940.S @@ -269,12 +269,6 @@ SYM_TYPED_FUNC_START(arm940_dma_unmap_area) ret lr SYM_FUNC_END(arm940_dma_unmap_area) - .globl arm940_flush_kern_cache_louis - .equ arm940_flush_kern_cache_louis, arm940_flush_kern_cache_all - - @ define struct cpu_cache_fns (see and proc-macros.S) - define_cache_functions arm940 - .type __arm940_setup, #function __arm940_setup: mov r0, #0 diff --git a/arch/arm/mm/proc-arm946.S b/arch/arm/mm/proc-arm946.S index 763a5a9bc735..a9d92380a5ac 100644 --- a/arch/arm/mm/proc-arm946.S +++ b/arch/arm/mm/proc-arm946.S @@ -312,12 +312,6 @@ SYM_TYPED_FUNC_START(arm946_dma_unmap_area) ret lr SYM_FUNC_END(arm946_dma_unmap_area) - .globl arm946_flush_kern_cache_louis - .equ arm946_flush_kern_cache_louis, arm946_flush_kern_cache_all - - @ define struct cpu_cache_fns (see and proc-macros.S) - define_cache_functions arm946 - ENTRY(cpu_arm946_dcache_clean_area) #ifndef CONFIG_CPU_DCACHE_WRITETHROUGH 1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry diff --git a/arch/arm/mm/proc-feroceon.S b/arch/arm/mm/proc-feroceon.S index d31fe58bf475..73f355cf2f89 100644 --- a/arch/arm/mm/proc-feroceon.S +++ b/arch/arm/mm/proc-feroceon.S @@ -414,33 +414,6 @@ SYM_TYPED_FUNC_START(feroceon_dma_unmap_area) ret lr SYM_FUNC_END(feroceon_dma_unmap_area) - .globl feroceon_flush_kern_cache_louis - .equ feroceon_flush_kern_cache_louis, feroceon_flush_kern_cache_all - - @ define struct cpu_cache_fns (see and proc-macros.S) - define_cache_functions feroceon - -.macro range_alias basename - .globl feroceon_range_\basename - .type feroceon_range_\basename , %function - .equ feroceon_range_\basename , feroceon_\basename -.endm - -/* - * Most of the cache functions are unchanged for this case. - * Export suitable alias symbols for the unchanged functions: - */ - range_alias flush_icache_all - range_alias flush_user_cache_all - range_alias flush_kern_cache_all - range_alias flush_kern_cache_louis - range_alias flush_user_cache_range - range_alias coherent_kern_range - range_alias coherent_user_range - range_alias dma_unmap_area - - define_cache_functions feroceon_range - .align 5 ENTRY(cpu_feroceon_dcache_clean_area) #if defined(CONFIG_CACHE_FEROCEON_L2) && \ diff --git a/arch/arm/mm/proc-macros.S b/arch/arm/mm/proc-macros.S index c0acfeac3e84..e388c4cc0c44 100644 --- a/arch/arm/mm/proc-macros.S +++ b/arch/arm/mm/proc-macros.S @@ -320,24 +320,6 @@ ENTRY(\name\()_processor_functions) #endif .endm -.macro define_cache_functions name:req - .align 2 - .type \name\()_cache_fns, #object -ENTRY(\name\()_cache_fns) - .long \name\()_flush_icache_all - .long \name\()_flush_kern_cache_all - .long \name\()_flush_kern_cache_louis - .long \name\()_flush_user_cache_all - .long \name\()_flush_user_cache_range - .long \name\()_coherent_kern_range - .long \name\()_coherent_user_range - .long \name\()_flush_kern_dcache_area - .long \name\()_dma_map_area - .long \name\()_dma_unmap_area - .long \name\()_dma_flush_range - .size \name\()_cache_fns, . - \name\()_cache_fns -.endm - .macro globl_equ x, y .globl \x .equ \x, \y diff --git a/arch/arm/mm/proc-mohawk.S b/arch/arm/mm/proc-mohawk.S index 949e2f254779..5361bba61751 100644 --- a/arch/arm/mm/proc-mohawk.S +++ b/arch/arm/mm/proc-mohawk.S @@ -296,12 +296,6 @@ SYM_TYPED_FUNC_START(mohawk_dma_unmap_area) ret lr SYM_FUNC_END(mohawk_dma_unmap_area) - .globl mohawk_flush_kern_cache_louis - .equ mohawk_flush_kern_cache_louis, mohawk_flush_kern_cache_all - - @ define struct cpu_cache_fns (see and proc-macros.S) - define_cache_functions mohawk - ENTRY(cpu_mohawk_dcache_clean_area) 1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry add r0, r0, #CACHE_DLINESIZE diff --git a/arch/arm/mm/proc-xsc3.S b/arch/arm/mm/proc-xsc3.S index ac3d99b49cc0..8a7b8adf7484 100644 --- a/arch/arm/mm/proc-xsc3.S +++ b/arch/arm/mm/proc-xsc3.S @@ -341,12 +341,6 @@ SYM_TYPED_FUNC_START(xsc3_dma_unmap_area) ret lr SYM_FUNC_END(xsc3_dma_unmap_area) - .globl xsc3_flush_kern_cache_louis - .equ xsc3_flush_kern_cache_louis, xsc3_flush_kern_cache_all - - @ define struct cpu_cache_fns (see and proc-macros.S) - define_cache_functions xsc3 - ENTRY(cpu_xsc3_dcache_clean_area) 1: mcr p15, 0, r0, c7, c10, 1 @ clean L1 D line add r0, r0, #CACHELINESIZE diff --git a/arch/arm/mm/proc-xscale.S b/arch/arm/mm/proc-xscale.S index 05d9ed952983..bbf1e94ba554 100644 --- a/arch/arm/mm/proc-xscale.S +++ b/arch/arm/mm/proc-xscale.S @@ -391,6 +391,20 @@ SYM_TYPED_FUNC_START(xscale_dma_map_area) b xscale_dma_flush_range SYM_FUNC_END(xscale_dma_map_area) +/* + * On stepping A0/A1 of the 80200, invalidating D-cache by line doesn't + * clear the dirty bits, which means that if we invalidate a dirty line, + * the dirty data can still be written back to external memory later on. + * + * The recommended workaround is to always do a clean D-cache line before + * doing an invalidate D-cache line, so on the affected processors, + * dma_inv_range() is implemented as dma_flush_range(). + * + * See erratum #25 of "Intel 80200 Processor Specification Update", + * revision January 22, 2003, available at: + * http://www.intel.com/design/iio/specupdt/273415.htm + */ + /* * dma_map_area(start, size, dir) * - start - kernel virtual start address @@ -414,49 +428,6 @@ SYM_TYPED_FUNC_START(xscale_dma_unmap_area) ret lr SYM_FUNC_END(xscale_dma_unmap_area) - .globl xscale_flush_kern_cache_louis - .equ xscale_flush_kern_cache_louis, xscale_flush_kern_cache_all - - @ define struct cpu_cache_fns (see and proc-macros.S) - define_cache_functions xscale - -/* - * On stepping A0/A1 of the 80200, invalidating D-cache by line doesn't - * clear the dirty bits, which means that if we invalidate a dirty line, - * the dirty data can still be written back to external memory later on. - * - * The recommended workaround is to always do a clean D-cache line before - * doing an invalidate D-cache line, so on the affected processors, - * dma_inv_range() is implemented as dma_flush_range(). - * - * See erratum #25 of "Intel 80200 Processor Specification Update", - * revision January 22, 2003, available at: - * http://www.intel.com/design/iio/specupdt/273415.htm - */ -.macro a0_alias basename - .globl xscale_80200_A0_A1_\basename - .type xscale_80200_A0_A1_\basename , %function - .equ xscale_80200_A0_A1_\basename , xscale_\basename -.endm - -/* - * Most of the cache functions are unchanged for these processor revisions. - * Export suitable alias symbols for the unchanged functions: - */ - a0_alias flush_icache_all - a0_alias flush_user_cache_all - a0_alias flush_kern_cache_all - a0_alias flush_kern_cache_louis - a0_alias flush_user_cache_range - a0_alias coherent_kern_range - a0_alias coherent_user_range - a0_alias flush_kern_dcache_area - a0_alias dma_flush_range - a0_alias dma_unmap_area - - @ define struct cpu_cache_fns (see and proc-macros.S) - define_cache_functions xscale_80200_A0_A1 - ENTRY(cpu_xscale_dcache_clean_area) 1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry add r0, r0, #CACHELINESIZE -- cgit v1.2.3 From 51db13aa8d09ecd33ff712d888a8cfe5ac89d6de Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Tue, 23 Apr 2024 08:45:47 +0100 Subject: ARM: 9388/2: mm: Type-annotate all per-processor assembly routines Type tag the remaining per-processor assembly using the CFI symbol macros, in addition to those that were previously tagged for cache maintenance calls. This will be used to finally provide proper C prototypes for all these calls as well so that CFI can be made to work. Tested-by: Kees Cook Acked-by: Arnd Bergmann Reviewed-by: Sami Tolvanen Signed-off-by: Linus Walleij Signed-off-by: Russell King (Oracle) --- arch/arm/mm/proc-arm1020.S | 24 ++++++++++------ arch/arm/mm/proc-arm1020e.S | 24 ++++++++++------ arch/arm/mm/proc-arm1022.S | 24 ++++++++++------ arch/arm/mm/proc-arm1026.S | 24 ++++++++++------ arch/arm/mm/proc-arm720.S | 25 +++++++++++------ arch/arm/mm/proc-arm740.S | 26 ++++++++++++----- arch/arm/mm/proc-arm7tdmi.S | 34 +++++++++++++++-------- arch/arm/mm/proc-arm920.S | 31 ++++++++++++--------- arch/arm/mm/proc-arm922.S | 23 +++++++++------ arch/arm/mm/proc-arm925.S | 22 +++++++++------ arch/arm/mm/proc-arm926.S | 31 +++++++++++++-------- arch/arm/mm/proc-arm940.S | 21 +++++++++----- arch/arm/mm/proc-arm946.S | 21 +++++++++----- arch/arm/mm/proc-arm9tdmi.S | 26 ++++++++++++----- arch/arm/mm/proc-fa526.S | 24 ++++++++++------ arch/arm/mm/proc-feroceon.S | 30 ++++++++++++-------- arch/arm/mm/proc-mohawk.S | 30 ++++++++++++-------- arch/arm/mm/proc-sa110.S | 23 +++++++++------ arch/arm/mm/proc-sa1100.S | 31 +++++++++++++-------- arch/arm/mm/proc-v6.S | 31 +++++++++++++-------- arch/arm/mm/proc-v7-2level.S | 8 +++--- arch/arm/mm/proc-v7-3level.S | 8 +++--- arch/arm/mm/proc-v7.S | 66 +++++++++++++++++++++++--------------------- arch/arm/mm/proc-v7m.S | 41 +++++++++++++-------------- arch/arm/mm/proc-xsc3.S | 30 ++++++++++++-------- arch/arm/mm/proc-xscale.S | 30 ++++++++++++-------- 26 files changed, 434 insertions(+), 274 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mm/proc-arm1020.S b/arch/arm/mm/proc-arm1020.S index d0a57ff7846a..ddda04929dae 100644 --- a/arch/arm/mm/proc-arm1020.S +++ b/arch/arm/mm/proc-arm1020.S @@ -57,18 +57,20 @@ /* * cpu_arm1020_proc_init() */ -ENTRY(cpu_arm1020_proc_init) +SYM_TYPED_FUNC_START(cpu_arm1020_proc_init) ret lr +SYM_FUNC_END(cpu_arm1020_proc_init) /* * cpu_arm1020_proc_fin() */ -ENTRY(cpu_arm1020_proc_fin) +SYM_TYPED_FUNC_START(cpu_arm1020_proc_fin) mrc p15, 0, r0, c1, c0, 0 @ ctrl register bic r0, r0, #0x1000 @ ...i............ bic r0, r0, #0x000e @ ............wca. mcr p15, 0, r0, c1, c0, 0 @ disable caches ret lr +SYM_FUNC_END(cpu_arm1020_proc_fin) /* * cpu_arm1020_reset(loc) @@ -81,7 +83,7 @@ ENTRY(cpu_arm1020_proc_fin) */ .align 5 .pushsection .idmap.text, "ax" -ENTRY(cpu_arm1020_reset) +SYM_TYPED_FUNC_START(cpu_arm1020_reset) mov ip, #0 mcr p15, 0, ip, c7, c7, 0 @ invalidate I,D caches mcr p15, 0, ip, c7, c10, 4 @ drain WB @@ -93,16 +95,17 @@ ENTRY(cpu_arm1020_reset) bic ip, ip, #0x1100 @ ...i...s........ mcr p15, 0, ip, c1, c0, 0 @ ctrl register ret r0 -ENDPROC(cpu_arm1020_reset) +SYM_FUNC_END(cpu_arm1020_reset) .popsection /* * cpu_arm1020_do_idle() */ .align 5 -ENTRY(cpu_arm1020_do_idle) +SYM_TYPED_FUNC_START(cpu_arm1020_do_idle) mcr p15, 0, r0, c7, c0, 4 @ Wait for interrupt ret lr +SYM_FUNC_END(cpu_arm1020_do_idle) /* ================================= CACHE ================================ */ @@ -360,7 +363,7 @@ SYM_TYPED_FUNC_START(arm1020_dma_unmap_area) SYM_FUNC_END(arm1020_dma_unmap_area) .align 5 -ENTRY(cpu_arm1020_dcache_clean_area) +SYM_TYPED_FUNC_START(cpu_arm1020_dcache_clean_area) #ifndef CONFIG_CPU_DCACHE_DISABLE mov ip, #0 1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry @@ -370,6 +373,7 @@ ENTRY(cpu_arm1020_dcache_clean_area) bhi 1b #endif ret lr +SYM_FUNC_END(cpu_arm1020_dcache_clean_area) /* =============================== PageTable ============================== */ @@ -381,7 +385,7 @@ ENTRY(cpu_arm1020_dcache_clean_area) * pgd: new page tables */ .align 5 -ENTRY(cpu_arm1020_switch_mm) +SYM_TYPED_FUNC_START(cpu_arm1020_switch_mm) #ifdef CONFIG_MMU #ifndef CONFIG_CPU_DCACHE_DISABLE mcr p15, 0, r3, c7, c10, 4 @@ -409,14 +413,15 @@ ENTRY(cpu_arm1020_switch_mm) mcr p15, 0, r1, c8, c7, 0 @ invalidate I & D TLBs #endif /* CONFIG_MMU */ ret lr - +SYM_FUNC_END(cpu_arm1020_switch_mm) + /* * cpu_arm1020_set_pte(ptep, pte) * * Set a PTE and flush it out */ .align 5 -ENTRY(cpu_arm1020_set_pte_ext) +SYM_TYPED_FUNC_START(cpu_arm1020_set_pte_ext) #ifdef CONFIG_MMU armv3_set_pte_ext mov r0, r0 @@ -427,6 +432,7 @@ ENTRY(cpu_arm1020_set_pte_ext) mcr p15, 0, r0, c7, c10, 4 @ drain WB #endif /* CONFIG_MMU */ ret lr +SYM_FUNC_END(cpu_arm1020_set_pte_ext) .type __arm1020_setup, #function __arm1020_setup: diff --git a/arch/arm/mm/proc-arm1020e.S b/arch/arm/mm/proc-arm1020e.S index f636f42fde33..60169f4ca391 100644 --- a/arch/arm/mm/proc-arm1020e.S +++ b/arch/arm/mm/proc-arm1020e.S @@ -57,18 +57,20 @@ /* * cpu_arm1020e_proc_init() */ -ENTRY(cpu_arm1020e_proc_init) +SYM_TYPED_FUNC_START(cpu_arm1020e_proc_init) ret lr +SYM_FUNC_END(cpu_arm1020e_proc_init) /* * cpu_arm1020e_proc_fin() */ -ENTRY(cpu_arm1020e_proc_fin) +SYM_TYPED_FUNC_START(cpu_arm1020e_proc_fin) mrc p15, 0, r0, c1, c0, 0 @ ctrl register bic r0, r0, #0x1000 @ ...i............ bic r0, r0, #0x000e @ ............wca. mcr p15, 0, r0, c1, c0, 0 @ disable caches ret lr +SYM_FUNC_END(cpu_arm1020e_proc_fin) /* * cpu_arm1020e_reset(loc) @@ -81,7 +83,7 @@ ENTRY(cpu_arm1020e_proc_fin) */ .align 5 .pushsection .idmap.text, "ax" -ENTRY(cpu_arm1020e_reset) +SYM_TYPED_FUNC_START(cpu_arm1020e_reset) mov ip, #0 mcr p15, 0, ip, c7, c7, 0 @ invalidate I,D caches mcr p15, 0, ip, c7, c10, 4 @ drain WB @@ -93,16 +95,17 @@ ENTRY(cpu_arm1020e_reset) bic ip, ip, #0x1100 @ ...i...s........ mcr p15, 0, ip, c1, c0, 0 @ ctrl register ret r0 -ENDPROC(cpu_arm1020e_reset) +SYM_FUNC_END(cpu_arm1020e_reset) .popsection /* * cpu_arm1020e_do_idle() */ .align 5 -ENTRY(cpu_arm1020e_do_idle) +SYM_TYPED_FUNC_START(cpu_arm1020e_do_idle) mcr p15, 0, r0, c7, c0, 4 @ Wait for interrupt ret lr +SYM_FUNC_END(cpu_arm1020e_do_idle) /* ================================= CACHE ================================ */ @@ -347,7 +350,7 @@ SYM_TYPED_FUNC_START(arm1020e_dma_unmap_area) SYM_FUNC_END(arm1020e_dma_unmap_area) .align 5 -ENTRY(cpu_arm1020e_dcache_clean_area) +SYM_TYPED_FUNC_START(cpu_arm1020e_dcache_clean_area) #ifndef CONFIG_CPU_DCACHE_DISABLE mov ip, #0 1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry @@ -356,6 +359,7 @@ ENTRY(cpu_arm1020e_dcache_clean_area) bhi 1b #endif ret lr +SYM_FUNC_END(cpu_arm1020e_dcache_clean_area) /* =============================== PageTable ============================== */ @@ -367,7 +371,7 @@ ENTRY(cpu_arm1020e_dcache_clean_area) * pgd: new page tables */ .align 5 -ENTRY(cpu_arm1020e_switch_mm) +SYM_TYPED_FUNC_START(cpu_arm1020e_switch_mm) #ifdef CONFIG_MMU #ifndef CONFIG_CPU_DCACHE_DISABLE mcr p15, 0, r3, c7, c10, 4 @@ -394,14 +398,15 @@ ENTRY(cpu_arm1020e_switch_mm) mcr p15, 0, r1, c8, c7, 0 @ invalidate I & D TLBs #endif ret lr - +SYM_FUNC_END(cpu_arm1020e_switch_mm) + /* * cpu_arm1020e_set_pte(ptep, pte) * * Set a PTE and flush it out */ .align 5 -ENTRY(cpu_arm1020e_set_pte_ext) +SYM_TYPED_FUNC_START(cpu_arm1020e_set_pte_ext) #ifdef CONFIG_MMU armv3_set_pte_ext mov r0, r0 @@ -410,6 +415,7 @@ ENTRY(cpu_arm1020e_set_pte_ext) #endif #endif /* CONFIG_MMU */ ret lr +SYM_FUNC_END(cpu_arm1020e_set_pte_ext) .type __arm1020e_setup, #function __arm1020e_setup: diff --git a/arch/arm/mm/proc-arm1022.S b/arch/arm/mm/proc-arm1022.S index b5f40858458d..30b0e4d05a05 100644 --- a/arch/arm/mm/proc-arm1022.S +++ b/arch/arm/mm/proc-arm1022.S @@ -57,18 +57,20 @@ /* * cpu_arm1022_proc_init() */ -ENTRY(cpu_arm1022_proc_init) +SYM_TYPED_FUNC_START(cpu_arm1022_proc_init) ret lr +SYM_FUNC_END(cpu_arm1022_proc_init) /* * cpu_arm1022_proc_fin() */ -ENTRY(cpu_arm1022_proc_fin) +SYM_TYPED_FUNC_START(cpu_arm1022_proc_fin) mrc p15, 0, r0, c1, c0, 0 @ ctrl register bic r0, r0, #0x1000 @ ...i............ bic r0, r0, #0x000e @ ............wca. mcr p15, 0, r0, c1, c0, 0 @ disable caches ret lr +SYM_FUNC_END(cpu_arm1022_proc_fin) /* * cpu_arm1022_reset(loc) @@ -81,7 +83,7 @@ ENTRY(cpu_arm1022_proc_fin) */ .align 5 .pushsection .idmap.text, "ax" -ENTRY(cpu_arm1022_reset) +SYM_TYPED_FUNC_START(cpu_arm1022_reset) mov ip, #0 mcr p15, 0, ip, c7, c7, 0 @ invalidate I,D caches mcr p15, 0, ip, c7, c10, 4 @ drain WB @@ -93,16 +95,17 @@ ENTRY(cpu_arm1022_reset) bic ip, ip, #0x1100 @ ...i...s........ mcr p15, 0, ip, c1, c0, 0 @ ctrl register ret r0 -ENDPROC(cpu_arm1022_reset) +SYM_FUNC_END(cpu_arm1022_reset) .popsection /* * cpu_arm1022_do_idle() */ .align 5 -ENTRY(cpu_arm1022_do_idle) +SYM_TYPED_FUNC_START(cpu_arm1022_do_idle) mcr p15, 0, r0, c7, c0, 4 @ Wait for interrupt ret lr +SYM_FUNC_END(cpu_arm1022_do_idle) /* ================================= CACHE ================================ */ @@ -346,7 +349,7 @@ SYM_TYPED_FUNC_START(arm1022_dma_unmap_area) SYM_FUNC_END(arm1022_dma_unmap_area) .align 5 -ENTRY(cpu_arm1022_dcache_clean_area) +SYM_TYPED_FUNC_START(cpu_arm1022_dcache_clean_area) #ifndef CONFIG_CPU_DCACHE_DISABLE mov ip, #0 1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry @@ -355,6 +358,7 @@ ENTRY(cpu_arm1022_dcache_clean_area) bhi 1b #endif ret lr +SYM_FUNC_END(cpu_arm1022_dcache_clean_area) /* =============================== PageTable ============================== */ @@ -366,7 +370,7 @@ ENTRY(cpu_arm1022_dcache_clean_area) * pgd: new page tables */ .align 5 -ENTRY(cpu_arm1022_switch_mm) +SYM_TYPED_FUNC_START(cpu_arm1022_switch_mm) #ifdef CONFIG_MMU #ifndef CONFIG_CPU_DCACHE_DISABLE mov r1, #(CACHE_DSEGMENTS - 1) << 5 @ 16 segments @@ -386,14 +390,15 @@ ENTRY(cpu_arm1022_switch_mm) mcr p15, 0, r1, c8, c7, 0 @ invalidate I & D TLBs #endif ret lr - +SYM_FUNC_END(cpu_arm1022_switch_mm) + /* * cpu_arm1022_set_pte_ext(ptep, pte, ext) * * Set a PTE and flush it out */ .align 5 -ENTRY(cpu_arm1022_set_pte_ext) +SYM_TYPED_FUNC_START(cpu_arm1022_set_pte_ext) #ifdef CONFIG_MMU armv3_set_pte_ext mov r0, r0 @@ -402,6 +407,7 @@ ENTRY(cpu_arm1022_set_pte_ext) #endif #endif /* CONFIG_MMU */ ret lr +SYM_FUNC_END(cpu_arm1022_set_pte_ext) .type __arm1022_setup, #function __arm1022_setup: diff --git a/arch/arm/mm/proc-arm1026.S b/arch/arm/mm/proc-arm1026.S index 505faa86ea09..ae06262ca779 100644 --- a/arch/arm/mm/proc-arm1026.S +++ b/arch/arm/mm/proc-arm1026.S @@ -57,18 +57,20 @@ /* * cpu_arm1026_proc_init() */ -ENTRY(cpu_arm1026_proc_init) +SYM_TYPED_FUNC_START(cpu_arm1026_proc_init) ret lr +SYM_FUNC_END(cpu_arm1026_proc_init) /* * cpu_arm1026_proc_fin() */ -ENTRY(cpu_arm1026_proc_fin) +SYM_TYPED_FUNC_START(cpu_arm1026_proc_fin) mrc p15, 0, r0, c1, c0, 0 @ ctrl register bic r0, r0, #0x1000 @ ...i............ bic r0, r0, #0x000e @ ............wca. mcr p15, 0, r0, c1, c0, 0 @ disable caches ret lr +SYM_FUNC_END(cpu_arm1026_proc_fin) /* * cpu_arm1026_reset(loc) @@ -81,7 +83,7 @@ ENTRY(cpu_arm1026_proc_fin) */ .align 5 .pushsection .idmap.text, "ax" -ENTRY(cpu_arm1026_reset) +SYM_TYPED_FUNC_START(cpu_arm1026_reset) mov ip, #0 mcr p15, 0, ip, c7, c7, 0 @ invalidate I,D caches mcr p15, 0, ip, c7, c10, 4 @ drain WB @@ -93,16 +95,17 @@ ENTRY(cpu_arm1026_reset) bic ip, ip, #0x1100 @ ...i...s........ mcr p15, 0, ip, c1, c0, 0 @ ctrl register ret r0 -ENDPROC(cpu_arm1026_reset) +SYM_FUNC_END(cpu_arm1026_reset) .popsection /* * cpu_arm1026_do_idle() */ .align 5 -ENTRY(cpu_arm1026_do_idle) +SYM_TYPED_FUNC_START(cpu_arm1026_do_idle) mcr p15, 0, r0, c7, c0, 4 @ Wait for interrupt ret lr +SYM_FUNC_END(cpu_arm1026_do_idle) /* ================================= CACHE ================================ */ @@ -341,7 +344,7 @@ SYM_TYPED_FUNC_START(arm1026_dma_unmap_area) SYM_FUNC_END(arm1026_dma_unmap_area) .align 5 -ENTRY(cpu_arm1026_dcache_clean_area) +SYM_TYPED_FUNC_START(cpu_arm1026_dcache_clean_area) #ifndef CONFIG_CPU_DCACHE_DISABLE mov ip, #0 1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry @@ -350,6 +353,7 @@ ENTRY(cpu_arm1026_dcache_clean_area) bhi 1b #endif ret lr +SYM_FUNC_END(cpu_arm1026_dcache_clean_area) /* =============================== PageTable ============================== */ @@ -361,7 +365,7 @@ ENTRY(cpu_arm1026_dcache_clean_area) * pgd: new page tables */ .align 5 -ENTRY(cpu_arm1026_switch_mm) +SYM_TYPED_FUNC_START(cpu_arm1026_switch_mm) #ifdef CONFIG_MMU mov r1, #0 #ifndef CONFIG_CPU_DCACHE_DISABLE @@ -376,14 +380,15 @@ ENTRY(cpu_arm1026_switch_mm) mcr p15, 0, r1, c8, c7, 0 @ invalidate I & D TLBs #endif ret lr - +SYM_FUNC_END(cpu_arm1026_switch_mm) + /* * cpu_arm1026_set_pte_ext(ptep, pte, ext) * * Set a PTE and flush it out */ .align 5 -ENTRY(cpu_arm1026_set_pte_ext) +SYM_TYPED_FUNC_START(cpu_arm1026_set_pte_ext) #ifdef CONFIG_MMU armv3_set_pte_ext mov r0, r0 @@ -392,6 +397,7 @@ ENTRY(cpu_arm1026_set_pte_ext) #endif #endif /* CONFIG_MMU */ ret lr +SYM_FUNC_END(cpu_arm1026_set_pte_ext) .type __arm1026_setup, #function __arm1026_setup: diff --git a/arch/arm/mm/proc-arm720.S b/arch/arm/mm/proc-arm720.S index 3b687e6dd9fd..59732c334e1d 100644 --- a/arch/arm/mm/proc-arm720.S +++ b/arch/arm/mm/proc-arm720.S @@ -20,6 +20,7 @@ */ #include #include +#include #include #include #include @@ -35,24 +36,30 @@ * * Notes : This processor does not require these */ -ENTRY(cpu_arm720_dcache_clean_area) -ENTRY(cpu_arm720_proc_init) +SYM_TYPED_FUNC_START(cpu_arm720_dcache_clean_area) ret lr +SYM_FUNC_END(cpu_arm720_dcache_clean_area) -ENTRY(cpu_arm720_proc_fin) +SYM_TYPED_FUNC_START(cpu_arm720_proc_init) + ret lr +SYM_FUNC_END(cpu_arm720_proc_init) + +SYM_TYPED_FUNC_START(cpu_arm720_proc_fin) mrc p15, 0, r0, c1, c0, 0 bic r0, r0, #0x1000 @ ...i............ bic r0, r0, #0x000e @ ............wca. mcr p15, 0, r0, c1, c0, 0 @ disable caches ret lr +SYM_FUNC_END(cpu_arm720_proc_fin) /* * Function: arm720_proc_do_idle(void) * Params : r0 = unused * Purpose : put the processor in proper idle mode */ -ENTRY(cpu_arm720_do_idle) +SYM_TYPED_FUNC_START(cpu_arm720_do_idle) ret lr +SYM_FUNC_END(cpu_arm720_do_idle) /* * Function: arm720_switch_mm(unsigned long pgd_phys) @@ -60,7 +67,7 @@ ENTRY(cpu_arm720_do_idle) * Purpose : Perform a task switch, saving the old process' state and restoring * the new. */ -ENTRY(cpu_arm720_switch_mm) +SYM_TYPED_FUNC_START(cpu_arm720_switch_mm) #ifdef CONFIG_MMU mov r1, #0 mcr p15, 0, r1, c7, c7, 0 @ invalidate cache @@ -68,6 +75,7 @@ ENTRY(cpu_arm720_switch_mm) mcr p15, 0, r1, c8, c7, 0 @ flush TLB (v4) #endif ret lr +SYM_FUNC_END(cpu_arm720_switch_mm) /* * Function: arm720_set_pte_ext(pte_t *ptep, pte_t pte, unsigned int ext) @@ -76,11 +84,12 @@ ENTRY(cpu_arm720_switch_mm) * Purpose : Set a PTE and flush it out of any WB cache */ .align 5 -ENTRY(cpu_arm720_set_pte_ext) +SYM_TYPED_FUNC_START(cpu_arm720_set_pte_ext) #ifdef CONFIG_MMU armv3_set_pte_ext wc_disable=0 #endif ret lr +SYM_FUNC_END(cpu_arm720_set_pte_ext) /* * Function: arm720_reset @@ -88,7 +97,7 @@ ENTRY(cpu_arm720_set_pte_ext) * Notes : This sets up everything for a reset */ .pushsection .idmap.text, "ax" -ENTRY(cpu_arm720_reset) +SYM_TYPED_FUNC_START(cpu_arm720_reset) mov ip, #0 mcr p15, 0, ip, c7, c7, 0 @ invalidate cache #ifdef CONFIG_MMU @@ -99,7 +108,7 @@ ENTRY(cpu_arm720_reset) bic ip, ip, #0x2100 @ ..v....s........ mcr p15, 0, ip, c1, c0, 0 @ ctrl register ret r0 -ENDPROC(cpu_arm720_reset) +SYM_FUNC_END(cpu_arm720_reset) .popsection .type __arm710_setup, #function diff --git a/arch/arm/mm/proc-arm740.S b/arch/arm/mm/proc-arm740.S index f2ec3bc60874..78854df63964 100644 --- a/arch/arm/mm/proc-arm740.S +++ b/arch/arm/mm/proc-arm740.S @@ -6,6 +6,7 @@ */ #include #include +#include #include #include #include @@ -24,21 +25,32 @@ * * These are not required. */ -ENTRY(cpu_arm740_proc_init) -ENTRY(cpu_arm740_do_idle) -ENTRY(cpu_arm740_dcache_clean_area) -ENTRY(cpu_arm740_switch_mm) +SYM_TYPED_FUNC_START(cpu_arm740_proc_init) ret lr +SYM_FUNC_END(cpu_arm740_proc_init) + +SYM_TYPED_FUNC_START(cpu_arm740_do_idle) + ret lr +SYM_FUNC_END(cpu_arm740_do_idle) + +SYM_TYPED_FUNC_START(cpu_arm740_dcache_clean_area) + ret lr +SYM_FUNC_END(cpu_arm740_dcache_clean_area) + +SYM_TYPED_FUNC_START(cpu_arm740_switch_mm) + ret lr +SYM_FUNC_END(cpu_arm740_switch_mm) /* * cpu_arm740_proc_fin() */ -ENTRY(cpu_arm740_proc_fin) +SYM_TYPED_FUNC_START(cpu_arm740_proc_fin) mrc p15, 0, r0, c1, c0, 0 bic r0, r0, #0x3f000000 @ bank/f/lock/s bic r0, r0, #0x0000000c @ w-buffer/cache mcr p15, 0, r0, c1, c0, 0 @ disable caches ret lr +SYM_FUNC_END(cpu_arm740_proc_fin) /* * cpu_arm740_reset(loc) @@ -46,14 +58,14 @@ ENTRY(cpu_arm740_proc_fin) * Notes : This sets up everything for a reset */ .pushsection .idmap.text, "ax" -ENTRY(cpu_arm740_reset) +SYM_TYPED_FUNC_START(cpu_arm740_reset) mov ip, #0 mcr p15, 0, ip, c7, c0, 0 @ invalidate cache mrc p15, 0, ip, c1, c0, 0 @ get ctrl register bic ip, ip, #0x0000000c @ ............wc.. mcr p15, 0, ip, c1, c0, 0 @ ctrl register ret r0 -ENDPROC(cpu_arm740_reset) +SYM_FUNC_END(cpu_arm740_reset) .popsection .type __arm740_setup, #function diff --git a/arch/arm/mm/proc-arm7tdmi.S b/arch/arm/mm/proc-arm7tdmi.S index 01bbe7576c1c..baa3d4472147 100644 --- a/arch/arm/mm/proc-arm7tdmi.S +++ b/arch/arm/mm/proc-arm7tdmi.S @@ -6,6 +6,7 @@ */ #include #include +#include #include #include #include @@ -23,18 +24,29 @@ * cpu_arm7tdmi_switch_mm() * * These are not required. - */ -ENTRY(cpu_arm7tdmi_proc_init) -ENTRY(cpu_arm7tdmi_do_idle) -ENTRY(cpu_arm7tdmi_dcache_clean_area) -ENTRY(cpu_arm7tdmi_switch_mm) - ret lr +*/ +SYM_TYPED_FUNC_START(cpu_arm7tdmi_proc_init) + ret lr +SYM_FUNC_END(cpu_arm7tdmi_proc_init) + +SYM_TYPED_FUNC_START(cpu_arm7tdmi_do_idle) + ret lr +SYM_FUNC_END(cpu_arm7tdmi_do_idle) + +SYM_TYPED_FUNC_START(cpu_arm7tdmi_dcache_clean_area) + ret lr +SYM_FUNC_END(cpu_arm7tdmi_dcache_clean_area) + +SYM_TYPED_FUNC_START(cpu_arm7tdmi_switch_mm) + ret lr +SYM_FUNC_END(cpu_arm7tdmi_switch_mm) /* * cpu_arm7tdmi_proc_fin() - */ -ENTRY(cpu_arm7tdmi_proc_fin) - ret lr +*/ +SYM_TYPED_FUNC_START(cpu_arm7tdmi_proc_fin) + ret lr +SYM_FUNC_END(cpu_arm7tdmi_proc_fin) /* * Function: cpu_arm7tdmi_reset(loc) @@ -42,9 +54,9 @@ ENTRY(cpu_arm7tdmi_proc_fin) * Purpose : Sets up everything for a reset and jump to the location for soft reset. */ .pushsection .idmap.text, "ax" -ENTRY(cpu_arm7tdmi_reset) +SYM_TYPED_FUNC_START(cpu_arm7tdmi_reset) ret r0 -ENDPROC(cpu_arm7tdmi_reset) +SYM_FUNC_END(cpu_arm7tdmi_reset) .popsection .type __arm7tdmi_setup, #function diff --git a/arch/arm/mm/proc-arm920.S b/arch/arm/mm/proc-arm920.S index c25e9dd0b3dd..e47411243b08 100644 --- a/arch/arm/mm/proc-arm920.S +++ b/arch/arm/mm/proc-arm920.S @@ -49,18 +49,20 @@ /* * cpu_arm920_proc_init() */ -ENTRY(cpu_arm920_proc_init) +SYM_TYPED_FUNC_START(cpu_arm920_proc_init) ret lr +SYM_FUNC_END(cpu_arm920_proc_init) /* * cpu_arm920_proc_fin() */ -ENTRY(cpu_arm920_proc_fin) +SYM_TYPED_FUNC_START(cpu_arm920_proc_fin) mrc p15, 0, r0, c1, c0, 0 @ ctrl register bic r0, r0, #0x1000 @ ...i............ bic r0, r0, #0x000e @ ............wca. mcr p15, 0, r0, c1, c0, 0 @ disable caches ret lr +SYM_FUNC_END(cpu_arm920_proc_fin) /* * cpu_arm920_reset(loc) @@ -73,7 +75,7 @@ ENTRY(cpu_arm920_proc_fin) */ .align 5 .pushsection .idmap.text, "ax" -ENTRY(cpu_arm920_reset) +SYM_TYPED_FUNC_START(cpu_arm920_reset) mov ip, #0 mcr p15, 0, ip, c7, c7, 0 @ invalidate I,D caches mcr p15, 0, ip, c7, c10, 4 @ drain WB @@ -85,17 +87,17 @@ ENTRY(cpu_arm920_reset) bic ip, ip, #0x1100 @ ...i...s........ mcr p15, 0, ip, c1, c0, 0 @ ctrl register ret r0 -ENDPROC(cpu_arm920_reset) +SYM_FUNC_END(cpu_arm920_reset) .popsection /* * cpu_arm920_do_idle() */ .align 5 -ENTRY(cpu_arm920_do_idle) +SYM_TYPED_FUNC_START(cpu_arm920_do_idle) mcr p15, 0, r0, c7, c0, 4 @ Wait for interrupt ret lr - +SYM_FUNC_END(cpu_arm920_do_idle) #ifndef CONFIG_CPU_DCACHE_WRITETHROUGH @@ -314,12 +316,13 @@ SYM_FUNC_END(arm920_dma_unmap_area) #endif /* !CONFIG_CPU_DCACHE_WRITETHROUGH */ -ENTRY(cpu_arm920_dcache_clean_area) +SYM_TYPED_FUNC_START(cpu_arm920_dcache_clean_area) 1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry add r0, r0, #CACHE_DLINESIZE subs r1, r1, #CACHE_DLINESIZE bhi 1b ret lr +SYM_FUNC_END(cpu_arm920_dcache_clean_area) /* =============================== PageTable ============================== */ @@ -331,7 +334,7 @@ ENTRY(cpu_arm920_dcache_clean_area) * pgd: new page tables */ .align 5 -ENTRY(cpu_arm920_switch_mm) +SYM_TYPED_FUNC_START(cpu_arm920_switch_mm) #ifdef CONFIG_MMU mov ip, #0 #ifdef CONFIG_CPU_DCACHE_WRITETHROUGH @@ -355,6 +358,7 @@ ENTRY(cpu_arm920_switch_mm) mcr p15, 0, ip, c8, c7, 0 @ invalidate I & D TLBs #endif ret lr +SYM_FUNC_END(cpu_arm920_switch_mm) /* * cpu_arm920_set_pte(ptep, pte, ext) @@ -362,7 +366,7 @@ ENTRY(cpu_arm920_switch_mm) * Set a PTE and flush it out */ .align 5 -ENTRY(cpu_arm920_set_pte_ext) +SYM_TYPED_FUNC_START(cpu_arm920_set_pte_ext) #ifdef CONFIG_MMU armv3_set_pte_ext mov r0, r0 @@ -370,21 +374,22 @@ ENTRY(cpu_arm920_set_pte_ext) mcr p15, 0, r0, c7, c10, 4 @ drain WB #endif ret lr +SYM_FUNC_END(cpu_arm920_set_pte_ext) /* Suspend/resume support: taken from arch/arm/plat-s3c24xx/sleep.S */ .globl cpu_arm920_suspend_size .equ cpu_arm920_suspend_size, 4 * 3 #ifdef CONFIG_ARM_CPU_SUSPEND -ENTRY(cpu_arm920_do_suspend) +SYM_TYPED_FUNC_START(cpu_arm920_do_suspend) stmfd sp!, {r4 - r6, lr} mrc p15, 0, r4, c13, c0, 0 @ PID mrc p15, 0, r5, c3, c0, 0 @ Domain ID mrc p15, 0, r6, c1, c0, 0 @ Control register stmia r0, {r4 - r6} ldmfd sp!, {r4 - r6, pc} -ENDPROC(cpu_arm920_do_suspend) +SYM_FUNC_END(cpu_arm920_do_suspend) -ENTRY(cpu_arm920_do_resume) +SYM_TYPED_FUNC_START(cpu_arm920_do_resume) mov ip, #0 mcr p15, 0, ip, c8, c7, 0 @ invalidate I+D TLBs mcr p15, 0, ip, c7, c7, 0 @ invalidate I+D caches @@ -394,7 +399,7 @@ ENTRY(cpu_arm920_do_resume) mcr p15, 0, r1, c2, c0, 0 @ TTB address mov r0, r6 @ control register b cpu_resume_mmu -ENDPROC(cpu_arm920_do_resume) +SYM_FUNC_END(cpu_arm920_do_resume) #endif .type __arm920_setup, #function diff --git a/arch/arm/mm/proc-arm922.S b/arch/arm/mm/proc-arm922.S index bd9bdcd68c12..092f8b7656a7 100644 --- a/arch/arm/mm/proc-arm922.S +++ b/arch/arm/mm/proc-arm922.S @@ -51,18 +51,20 @@ /* * cpu_arm922_proc_init() */ -ENTRY(cpu_arm922_proc_init) +SYM_TYPED_FUNC_START(cpu_arm922_proc_init) ret lr +SYM_FUNC_END(cpu_arm922_proc_init) /* * cpu_arm922_proc_fin() */ -ENTRY(cpu_arm922_proc_fin) +SYM_TYPED_FUNC_START(cpu_arm922_proc_fin) mrc p15, 0, r0, c1, c0, 0 @ ctrl register bic r0, r0, #0x1000 @ ...i............ bic r0, r0, #0x000e @ ............wca. mcr p15, 0, r0, c1, c0, 0 @ disable caches ret lr +SYM_FUNC_END(cpu_arm922_proc_fin) /* * cpu_arm922_reset(loc) @@ -75,7 +77,7 @@ ENTRY(cpu_arm922_proc_fin) */ .align 5 .pushsection .idmap.text, "ax" -ENTRY(cpu_arm922_reset) +SYM_TYPED_FUNC_START(cpu_arm922_reset) mov ip, #0 mcr p15, 0, ip, c7, c7, 0 @ invalidate I,D caches mcr p15, 0, ip, c7, c10, 4 @ drain WB @@ -87,17 +89,17 @@ ENTRY(cpu_arm922_reset) bic ip, ip, #0x1100 @ ...i...s........ mcr p15, 0, ip, c1, c0, 0 @ ctrl register ret r0 -ENDPROC(cpu_arm922_reset) +SYM_FUNC_END(cpu_arm922_reset) .popsection /* * cpu_arm922_do_idle() */ .align 5 -ENTRY(cpu_arm922_do_idle) +SYM_TYPED_FUNC_START(cpu_arm922_do_idle) mcr p15, 0, r0, c7, c0, 4 @ Wait for interrupt ret lr - +SYM_FUNC_END(cpu_arm922_do_idle) #ifndef CONFIG_CPU_DCACHE_WRITETHROUGH @@ -315,7 +317,7 @@ SYM_FUNC_END(arm922_dma_unmap_area) #endif /* !CONFIG_CPU_DCACHE_WRITETHROUGH */ -ENTRY(cpu_arm922_dcache_clean_area) +SYM_TYPED_FUNC_START(cpu_arm922_dcache_clean_area) #ifndef CONFIG_CPU_DCACHE_WRITETHROUGH 1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry add r0, r0, #CACHE_DLINESIZE @@ -323,6 +325,7 @@ ENTRY(cpu_arm922_dcache_clean_area) bhi 1b #endif ret lr +SYM_FUNC_END(cpu_arm922_dcache_clean_area) /* =============================== PageTable ============================== */ @@ -334,7 +337,7 @@ ENTRY(cpu_arm922_dcache_clean_area) * pgd: new page tables */ .align 5 -ENTRY(cpu_arm922_switch_mm) +SYM_TYPED_FUNC_START(cpu_arm922_switch_mm) #ifdef CONFIG_MMU mov ip, #0 #ifdef CONFIG_CPU_DCACHE_WRITETHROUGH @@ -358,6 +361,7 @@ ENTRY(cpu_arm922_switch_mm) mcr p15, 0, ip, c8, c7, 0 @ invalidate I & D TLBs #endif ret lr +SYM_FUNC_END(cpu_arm922_switch_mm) /* * cpu_arm922_set_pte_ext(ptep, pte, ext) @@ -365,7 +369,7 @@ ENTRY(cpu_arm922_switch_mm) * Set a PTE and flush it out */ .align 5 -ENTRY(cpu_arm922_set_pte_ext) +SYM_TYPED_FUNC_START(cpu_arm922_set_pte_ext) #ifdef CONFIG_MMU armv3_set_pte_ext mov r0, r0 @@ -373,6 +377,7 @@ ENTRY(cpu_arm922_set_pte_ext) mcr p15, 0, r0, c7, c10, 4 @ drain WB #endif /* CONFIG_MMU */ ret lr +SYM_FUNC_END(cpu_arm922_set_pte_ext) .type __arm922_setup, #function __arm922_setup: diff --git a/arch/arm/mm/proc-arm925.S b/arch/arm/mm/proc-arm925.S index 23477a509e48..a06039a3b2a8 100644 --- a/arch/arm/mm/proc-arm925.S +++ b/arch/arm/mm/proc-arm925.S @@ -72,18 +72,20 @@ /* * cpu_arm925_proc_init() */ -ENTRY(cpu_arm925_proc_init) +SYM_TYPED_FUNC_START(cpu_arm925_proc_init) ret lr +SYM_FUNC_END(cpu_arm925_proc_init) /* * cpu_arm925_proc_fin() */ -ENTRY(cpu_arm925_proc_fin) +SYM_TYPED_FUNC_START(cpu_arm925_proc_fin) mrc p15, 0, r0, c1, c0, 0 @ ctrl register bic r0, r0, #0x1000 @ ...i............ bic r0, r0, #0x000e @ ............wca. mcr p15, 0, r0, c1, c0, 0 @ disable caches ret lr +SYM_FUNC_END(cpu_arm925_proc_fin) /* * cpu_arm925_reset(loc) @@ -96,14 +98,14 @@ ENTRY(cpu_arm925_proc_fin) */ .align 5 .pushsection .idmap.text, "ax" -ENTRY(cpu_arm925_reset) +SYM_TYPED_FUNC_START(cpu_arm925_reset) /* Send software reset to MPU and DSP */ mov ip, #0xff000000 orr ip, ip, #0x00fe0000 orr ip, ip, #0x0000ce00 mov r4, #1 strh r4, [ip, #0x10] -ENDPROC(cpu_arm925_reset) +SYM_FUNC_END(cpu_arm925_reset) .popsection mov ip, #0 @@ -124,7 +126,7 @@ ENDPROC(cpu_arm925_reset) * Called with IRQs disabled */ .align 10 -ENTRY(cpu_arm925_do_idle) +SYM_TYPED_FUNC_START(cpu_arm925_do_idle) mov r0, #0 mrc p15, 0, r1, c1, c0, 0 @ Read control register mcr p15, 0, r0, c7, c10, 4 @ Drain write buffer @@ -133,6 +135,7 @@ ENTRY(cpu_arm925_do_idle) mcr p15, 0, r0, c7, c0, 4 @ Wait for interrupt mcr p15, 0, r1, c1, c0, 0 @ Restore ICache enable ret lr +SYM_FUNC_END(cpu_arm925_do_idle) /* * flush_icache_all() @@ -368,7 +371,7 @@ SYM_TYPED_FUNC_START(arm925_dma_unmap_area) ret lr SYM_FUNC_END(arm925_dma_unmap_area) -ENTRY(cpu_arm925_dcache_clean_area) +SYM_TYPED_FUNC_START(cpu_arm925_dcache_clean_area) #ifndef CONFIG_CPU_DCACHE_WRITETHROUGH 1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry add r0, r0, #CACHE_DLINESIZE @@ -377,6 +380,7 @@ ENTRY(cpu_arm925_dcache_clean_area) #endif mcr p15, 0, r0, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(cpu_arm925_dcache_clean_area) /* =============================== PageTable ============================== */ @@ -388,7 +392,7 @@ ENTRY(cpu_arm925_dcache_clean_area) * pgd: new page tables */ .align 5 -ENTRY(cpu_arm925_switch_mm) +SYM_TYPED_FUNC_START(cpu_arm925_switch_mm) #ifdef CONFIG_MMU mov ip, #0 #ifdef CONFIG_CPU_DCACHE_WRITETHROUGH @@ -406,6 +410,7 @@ ENTRY(cpu_arm925_switch_mm) mcr p15, 0, ip, c8, c7, 0 @ invalidate I & D TLBs #endif ret lr +SYM_FUNC_END(cpu_arm925_switch_mm) /* * cpu_arm925_set_pte_ext(ptep, pte, ext) @@ -413,7 +418,7 @@ ENTRY(cpu_arm925_switch_mm) * Set a PTE and flush it out */ .align 5 -ENTRY(cpu_arm925_set_pte_ext) +SYM_TYPED_FUNC_START(cpu_arm925_set_pte_ext) #ifdef CONFIG_MMU armv3_set_pte_ext mov r0, r0 @@ -423,6 +428,7 @@ ENTRY(cpu_arm925_set_pte_ext) mcr p15, 0, r0, c7, c10, 4 @ drain WB #endif /* CONFIG_MMU */ ret lr +SYM_FUNC_END(cpu_arm925_set_pte_ext) .type __arm925_setup, #function __arm925_setup: diff --git a/arch/arm/mm/proc-arm926.S b/arch/arm/mm/proc-arm926.S index 335d18c850fc..2c8b93d446a9 100644 --- a/arch/arm/mm/proc-arm926.S +++ b/arch/arm/mm/proc-arm926.S @@ -41,18 +41,20 @@ /* * cpu_arm926_proc_init() */ -ENTRY(cpu_arm926_proc_init) +SYM_TYPED_FUNC_START(cpu_arm926_proc_init) ret lr +SYM_FUNC_END(cpu_arm926_proc_init) /* * cpu_arm926_proc_fin() */ -ENTRY(cpu_arm926_proc_fin) +SYM_TYPED_FUNC_START(cpu_arm926_proc_fin) mrc p15, 0, r0, c1, c0, 0 @ ctrl register bic r0, r0, #0x1000 @ ...i............ bic r0, r0, #0x000e @ ............wca. mcr p15, 0, r0, c1, c0, 0 @ disable caches ret lr +SYM_FUNC_END(cpu_arm926_proc_fin) /* * cpu_arm926_reset(loc) @@ -65,7 +67,7 @@ ENTRY(cpu_arm926_proc_fin) */ .align 5 .pushsection .idmap.text, "ax" -ENTRY(cpu_arm926_reset) +SYM_TYPED_FUNC_START(cpu_arm926_reset) mov ip, #0 mcr p15, 0, ip, c7, c7, 0 @ invalidate I,D caches mcr p15, 0, ip, c7, c10, 4 @ drain WB @@ -77,7 +79,7 @@ ENTRY(cpu_arm926_reset) bic ip, ip, #0x1100 @ ...i...s........ mcr p15, 0, ip, c1, c0, 0 @ ctrl register ret r0 -ENDPROC(cpu_arm926_reset) +SYM_FUNC_END(cpu_arm926_reset) .popsection /* @@ -86,7 +88,7 @@ ENDPROC(cpu_arm926_reset) * Called with IRQs disabled */ .align 10 -ENTRY(cpu_arm926_do_idle) +SYM_TYPED_FUNC_START(cpu_arm926_do_idle) mov r0, #0 mrc p15, 0, r1, c1, c0, 0 @ Read control register mcr p15, 0, r0, c7, c10, 4 @ Drain write buffer @@ -99,6 +101,7 @@ ENTRY(cpu_arm926_do_idle) mcr p15, 0, r1, c1, c0, 0 @ Restore ICache enable msr cpsr_c, r3 @ Restore FIQ state ret lr +SYM_FUNC_END(cpu_arm926_do_idle) /* * flush_icache_all() @@ -331,7 +334,7 @@ SYM_TYPED_FUNC_START(arm926_dma_unmap_area) ret lr SYM_FUNC_END(arm926_dma_unmap_area) -ENTRY(cpu_arm926_dcache_clean_area) +SYM_TYPED_FUNC_START(cpu_arm926_dcache_clean_area) #ifndef CONFIG_CPU_DCACHE_WRITETHROUGH 1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry add r0, r0, #CACHE_DLINESIZE @@ -340,6 +343,7 @@ ENTRY(cpu_arm926_dcache_clean_area) #endif mcr p15, 0, r0, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(cpu_arm926_dcache_clean_area) /* =============================== PageTable ============================== */ @@ -351,7 +355,8 @@ ENTRY(cpu_arm926_dcache_clean_area) * pgd: new page tables */ .align 5 -ENTRY(cpu_arm926_switch_mm) + +SYM_TYPED_FUNC_START(cpu_arm926_switch_mm) #ifdef CONFIG_MMU mov ip, #0 #ifdef CONFIG_CPU_DCACHE_WRITETHROUGH @@ -367,6 +372,7 @@ ENTRY(cpu_arm926_switch_mm) mcr p15, 0, ip, c8, c7, 0 @ invalidate I & D TLBs #endif ret lr +SYM_FUNC_END(cpu_arm926_switch_mm) /* * cpu_arm926_set_pte_ext(ptep, pte, ext) @@ -374,7 +380,7 @@ ENTRY(cpu_arm926_switch_mm) * Set a PTE and flush it out */ .align 5 -ENTRY(cpu_arm926_set_pte_ext) +SYM_TYPED_FUNC_START(cpu_arm926_set_pte_ext) #ifdef CONFIG_MMU armv3_set_pte_ext mov r0, r0 @@ -384,21 +390,22 @@ ENTRY(cpu_arm926_set_pte_ext) mcr p15, 0, r0, c7, c10, 4 @ drain WB #endif ret lr +SYM_FUNC_END(cpu_arm926_set_pte_ext) /* Suspend/resume support: taken from arch/arm/plat-s3c24xx/sleep.S */ .globl cpu_arm926_suspend_size .equ cpu_arm926_suspend_size, 4 * 3 #ifdef CONFIG_ARM_CPU_SUSPEND -ENTRY(cpu_arm926_do_suspend) +SYM_TYPED_FUNC_START(cpu_arm926_do_suspend) stmfd sp!, {r4 - r6, lr} mrc p15, 0, r4, c13, c0, 0 @ PID mrc p15, 0, r5, c3, c0, 0 @ Domain ID mrc p15, 0, r6, c1, c0, 0 @ Control register stmia r0, {r4 - r6} ldmfd sp!, {r4 - r6, pc} -ENDPROC(cpu_arm926_do_suspend) +SYM_FUNC_END(cpu_arm926_do_suspend) -ENTRY(cpu_arm926_do_resume) +SYM_TYPED_FUNC_START(cpu_arm926_do_resume) mov ip, #0 mcr p15, 0, ip, c8, c7, 0 @ invalidate I+D TLBs mcr p15, 0, ip, c7, c7, 0 @ invalidate I+D caches @@ -408,7 +415,7 @@ ENTRY(cpu_arm926_do_resume) mcr p15, 0, r1, c2, c0, 0 @ TTB address mov r0, r6 @ control register b cpu_resume_mmu -ENDPROC(cpu_arm926_do_resume) +SYM_FUNC_END(cpu_arm926_do_resume) #endif .type __arm926_setup, #function diff --git a/arch/arm/mm/proc-arm940.S b/arch/arm/mm/proc-arm940.S index a429b06aa212..fbe168213ec1 100644 --- a/arch/arm/mm/proc-arm940.S +++ b/arch/arm/mm/proc-arm940.S @@ -26,19 +26,24 @@ * * These are not required. */ -ENTRY(cpu_arm940_proc_init) -ENTRY(cpu_arm940_switch_mm) +SYM_TYPED_FUNC_START(cpu_arm940_proc_init) ret lr +SYM_FUNC_END(cpu_arm940_proc_init) + +SYM_TYPED_FUNC_START(cpu_arm940_switch_mm) + ret lr +SYM_FUNC_END(cpu_arm940_switch_mm) /* * cpu_arm940_proc_fin() */ -ENTRY(cpu_arm940_proc_fin) +SYM_TYPED_FUNC_START(cpu_arm940_proc_fin) mrc p15, 0, r0, c1, c0, 0 @ ctrl register bic r0, r0, #0x00001000 @ i-cache bic r0, r0, #0x00000004 @ d-cache mcr p15, 0, r0, c1, c0, 0 @ disable caches ret lr +SYM_FUNC_END(cpu_arm940_proc_fin) /* * cpu_arm940_reset(loc) @@ -46,7 +51,7 @@ ENTRY(cpu_arm940_proc_fin) * Notes : This sets up everything for a reset */ .pushsection .idmap.text, "ax" -ENTRY(cpu_arm940_reset) +SYM_TYPED_FUNC_START(cpu_arm940_reset) mov ip, #0 mcr p15, 0, ip, c7, c5, 0 @ flush I cache mcr p15, 0, ip, c7, c6, 0 @ flush D cache @@ -56,16 +61,17 @@ ENTRY(cpu_arm940_reset) bic ip, ip, #0x00001000 @ i-cache mcr p15, 0, ip, c1, c0, 0 @ ctrl register ret r0 -ENDPROC(cpu_arm940_reset) +SYM_FUNC_END(cpu_arm940_reset) .popsection /* * cpu_arm940_do_idle() */ .align 5 -ENTRY(cpu_arm940_do_idle) +SYM_TYPED_FUNC_START(cpu_arm940_do_idle) mcr p15, 0, r0, c7, c0, 4 @ Wait for interrupt ret lr +SYM_FUNC_END(cpu_arm940_do_idle) /* * flush_icache_all() @@ -204,7 +210,7 @@ arm940_dma_inv_range: * - end - virtual end address */ arm940_dma_clean_range: -ENTRY(cpu_arm940_dcache_clean_area) +SYM_TYPED_FUNC_START(cpu_arm940_dcache_clean_area) mov ip, #0 #ifndef CONFIG_CPU_DCACHE_WRITETHROUGH mov r1, #(CACHE_DSEGMENTS - 1) << 4 @ 4 segments @@ -217,6 +223,7 @@ ENTRY(cpu_arm940_dcache_clean_area) #endif mcr p15, 0, ip, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(cpu_arm940_dcache_clean_area) /* * dma_flush_range(start, end) diff --git a/arch/arm/mm/proc-arm946.S b/arch/arm/mm/proc-arm946.S index a9d92380a5ac..4772b46064e6 100644 --- a/arch/arm/mm/proc-arm946.S +++ b/arch/arm/mm/proc-arm946.S @@ -33,19 +33,24 @@ * * These are not required. */ -ENTRY(cpu_arm946_proc_init) -ENTRY(cpu_arm946_switch_mm) +SYM_TYPED_FUNC_START(cpu_arm946_proc_init) ret lr +SYM_FUNC_END(cpu_arm946_proc_init) + +SYM_TYPED_FUNC_START(cpu_arm946_switch_mm) + ret lr +SYM_FUNC_END(cpu_arm946_switch_mm) /* * cpu_arm946_proc_fin() */ -ENTRY(cpu_arm946_proc_fin) +SYM_TYPED_FUNC_START(cpu_arm946_proc_fin) mrc p15, 0, r0, c1, c0, 0 @ ctrl register bic r0, r0, #0x00001000 @ i-cache bic r0, r0, #0x00000004 @ d-cache mcr p15, 0, r0, c1, c0, 0 @ disable caches ret lr +SYM_FUNC_END(cpu_arm946_proc_fin) /* * cpu_arm946_reset(loc) @@ -53,7 +58,7 @@ ENTRY(cpu_arm946_proc_fin) * Notes : This sets up everything for a reset */ .pushsection .idmap.text, "ax" -ENTRY(cpu_arm946_reset) +SYM_TYPED_FUNC_START(cpu_arm946_reset) mov ip, #0 mcr p15, 0, ip, c7, c5, 0 @ flush I cache mcr p15, 0, ip, c7, c6, 0 @ flush D cache @@ -63,16 +68,17 @@ ENTRY(cpu_arm946_reset) bic ip, ip, #0x00001000 @ i-cache mcr p15, 0, ip, c1, c0, 0 @ ctrl register ret r0 -ENDPROC(cpu_arm946_reset) +SYM_FUNC_END(cpu_arm946_reset) .popsection /* * cpu_arm946_do_idle() */ .align 5 -ENTRY(cpu_arm946_do_idle) +SYM_TYPED_FUNC_START(cpu_arm946_do_idle) mcr p15, 0, r0, c7, c0, 4 @ Wait for interrupt ret lr +SYM_FUNC_END(cpu_arm946_do_idle) /* * flush_icache_all() @@ -312,7 +318,7 @@ SYM_TYPED_FUNC_START(arm946_dma_unmap_area) ret lr SYM_FUNC_END(arm946_dma_unmap_area) -ENTRY(cpu_arm946_dcache_clean_area) +SYM_TYPED_FUNC_START(cpu_arm946_dcache_clean_area) #ifndef CONFIG_CPU_DCACHE_WRITETHROUGH 1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry add r0, r0, #CACHE_DLINESIZE @@ -321,6 +327,7 @@ ENTRY(cpu_arm946_dcache_clean_area) #endif mcr p15, 0, r0, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(cpu_arm946_dcache_clean_area) .type __arm946_setup, #function __arm946_setup: diff --git a/arch/arm/mm/proc-arm9tdmi.S b/arch/arm/mm/proc-arm9tdmi.S index a054c0e9c034..c480a8400eff 100644 --- a/arch/arm/mm/proc-arm9tdmi.S +++ b/arch/arm/mm/proc-arm9tdmi.S @@ -6,6 +6,7 @@ */ #include #include +#include #include #include #include @@ -24,17 +25,28 @@ * * These are not required. */ -ENTRY(cpu_arm9tdmi_proc_init) -ENTRY(cpu_arm9tdmi_do_idle) -ENTRY(cpu_arm9tdmi_dcache_clean_area) -ENTRY(cpu_arm9tdmi_switch_mm) +SYM_TYPED_FUNC_START(cpu_arm9tdmi_proc_init) ret lr +SYM_FUNC_END(cpu_arm9tdmi_proc_init) + +SYM_TYPED_FUNC_START(cpu_arm9tdmi_do_idle) + ret lr +SYM_FUNC_END(cpu_arm9tdmi_do_idle) + +SYM_TYPED_FUNC_START(cpu_arm9tdmi_dcache_clean_area) + ret lr +SYM_FUNC_END(cpu_arm9tdmi_dcache_clean_area) + +SYM_TYPED_FUNC_START(cpu_arm9tdmi_switch_mm) + ret lr +SYM_FUNC_END(cpu_arm9tdmi_switch_mm) /* * cpu_arm9tdmi_proc_fin() */ -ENTRY(cpu_arm9tdmi_proc_fin) +SYM_TYPED_FUNC_START(cpu_arm9tdmi_proc_fin) ret lr +SYM_FUNC_END(cpu_arm9tdmi_proc_fin) /* * Function: cpu_arm9tdmi_reset(loc) @@ -42,9 +54,9 @@ ENTRY(cpu_arm9tdmi_proc_fin) * Purpose : Sets up everything for a reset and jump to the location for soft reset. */ .pushsection .idmap.text, "ax" -ENTRY(cpu_arm9tdmi_reset) +SYM_TYPED_FUNC_START(cpu_arm9tdmi_reset) ret r0 -ENDPROC(cpu_arm9tdmi_reset) +SYM_FUNC_END(cpu_arm9tdmi_reset) .popsection .type __arm9tdmi_setup, #function diff --git a/arch/arm/mm/proc-fa526.S b/arch/arm/mm/proc-fa526.S index 2c73e0d47d08..7c16ccac8a05 100644 --- a/arch/arm/mm/proc-fa526.S +++ b/arch/arm/mm/proc-fa526.S @@ -11,6 +11,7 @@ */ #include #include +#include #include #include #include @@ -26,13 +27,14 @@ /* * cpu_fa526_proc_init() */ -ENTRY(cpu_fa526_proc_init) +SYM_TYPED_FUNC_START(cpu_fa526_proc_init) ret lr +SYM_FUNC_END(cpu_fa526_proc_init) /* * cpu_fa526_proc_fin() */ -ENTRY(cpu_fa526_proc_fin) +SYM_TYPED_FUNC_START(cpu_fa526_proc_fin) mrc p15, 0, r0, c1, c0, 0 @ ctrl register bic r0, r0, #0x1000 @ ...i............ bic r0, r0, #0x000e @ ............wca. @@ -40,6 +42,7 @@ ENTRY(cpu_fa526_proc_fin) nop nop ret lr +SYM_FUNC_END(cpu_fa526_proc_fin) /* * cpu_fa526_reset(loc) @@ -52,7 +55,7 @@ ENTRY(cpu_fa526_proc_fin) */ .align 4 .pushsection .idmap.text, "ax" -ENTRY(cpu_fa526_reset) +SYM_TYPED_FUNC_START(cpu_fa526_reset) /* TODO: Use CP8 if possible... */ mov ip, #0 mcr p15, 0, ip, c7, c7, 0 @ invalidate I,D caches @@ -68,24 +71,25 @@ ENTRY(cpu_fa526_reset) nop nop ret r0 -ENDPROC(cpu_fa526_reset) +SYM_FUNC_END(cpu_fa526_reset) .popsection /* * cpu_fa526_do_idle() */ .align 4 -ENTRY(cpu_fa526_do_idle) +SYM_TYPED_FUNC_START(cpu_fa526_do_idle) ret lr +SYM_FUNC_END(cpu_fa526_do_idle) - -ENTRY(cpu_fa526_dcache_clean_area) +SYM_TYPED_FUNC_START(cpu_fa526_dcache_clean_area) 1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry add r0, r0, #CACHE_DLINESIZE subs r1, r1, #CACHE_DLINESIZE bhi 1b mcr p15, 0, r0, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(cpu_fa526_dcache_clean_area) /* =============================== PageTable ============================== */ @@ -97,7 +101,7 @@ ENTRY(cpu_fa526_dcache_clean_area) * pgd: new page tables */ .align 4 -ENTRY(cpu_fa526_switch_mm) +SYM_TYPED_FUNC_START(cpu_fa526_switch_mm) #ifdef CONFIG_MMU mov ip, #0 #ifdef CONFIG_CPU_DCACHE_WRITETHROUGH @@ -113,6 +117,7 @@ ENTRY(cpu_fa526_switch_mm) mcr p15, 0, ip, c8, c7, 0 @ invalidate UTLB #endif ret lr +SYM_FUNC_END(cpu_fa526_switch_mm) /* * cpu_fa526_set_pte_ext(ptep, pte, ext) @@ -120,7 +125,7 @@ ENTRY(cpu_fa526_switch_mm) * Set a PTE and flush it out */ .align 4 -ENTRY(cpu_fa526_set_pte_ext) +SYM_TYPED_FUNC_START(cpu_fa526_set_pte_ext) #ifdef CONFIG_MMU armv3_set_pte_ext mov r0, r0 @@ -129,6 +134,7 @@ ENTRY(cpu_fa526_set_pte_ext) mcr p15, 0, r0, c7, c10, 4 @ drain WB #endif ret lr +SYM_FUNC_END(cpu_fa526_set_pte_ext) .type __fa526_setup, #function __fa526_setup: diff --git a/arch/arm/mm/proc-feroceon.S b/arch/arm/mm/proc-feroceon.S index 73f355cf2f89..8519ff60e512 100644 --- a/arch/arm/mm/proc-feroceon.S +++ b/arch/arm/mm/proc-feroceon.S @@ -44,7 +44,7 @@ __cache_params: /* * cpu_feroceon_proc_init() */ -ENTRY(cpu_feroceon_proc_init) +SYM_TYPED_FUNC_START(cpu_feroceon_proc_init) mrc p15, 0, r0, c0, c0, 1 @ read cache type register ldr r1, __cache_params mov r2, #(16 << 5) @@ -62,11 +62,12 @@ ENTRY(cpu_feroceon_proc_init) str_l r1, VFP_arch_feroceon, r2 #endif ret lr +SYM_FUNC_END(cpu_feroceon_proc_init) /* * cpu_feroceon_proc_fin() */ -ENTRY(cpu_feroceon_proc_fin) +SYM_TYPED_FUNC_START(cpu_feroceon_proc_fin) #if defined(CONFIG_CACHE_FEROCEON_L2) && \ !defined(CONFIG_CACHE_FEROCEON_L2_WRITETHROUGH) mov r0, #0 @@ -79,6 +80,7 @@ ENTRY(cpu_feroceon_proc_fin) bic r0, r0, #0x000e @ ............wca. mcr p15, 0, r0, c1, c0, 0 @ disable caches ret lr +SYM_FUNC_END(cpu_feroceon_proc_fin) /* * cpu_feroceon_reset(loc) @@ -91,7 +93,7 @@ ENTRY(cpu_feroceon_proc_fin) */ .align 5 .pushsection .idmap.text, "ax" -ENTRY(cpu_feroceon_reset) +SYM_TYPED_FUNC_START(cpu_feroceon_reset) mov ip, #0 mcr p15, 0, ip, c7, c7, 0 @ invalidate I,D caches mcr p15, 0, ip, c7, c10, 4 @ drain WB @@ -103,7 +105,7 @@ ENTRY(cpu_feroceon_reset) bic ip, ip, #0x1100 @ ...i...s........ mcr p15, 0, ip, c1, c0, 0 @ ctrl register ret r0 -ENDPROC(cpu_feroceon_reset) +SYM_FUNC_END(cpu_feroceon_reset) .popsection /* @@ -112,11 +114,12 @@ ENDPROC(cpu_feroceon_reset) * Called with IRQs disabled */ .align 5 -ENTRY(cpu_feroceon_do_idle) +SYM_TYPED_FUNC_START(cpu_feroceon_do_idle) mov r0, #0 mcr p15, 0, r0, c7, c10, 4 @ Drain write buffer mcr p15, 0, r0, c7, c0, 4 @ Wait for interrupt ret lr +SYM_FUNC_END(cpu_feroceon_do_idle) /* * flush_icache_all() @@ -415,7 +418,7 @@ SYM_TYPED_FUNC_START(feroceon_dma_unmap_area) SYM_FUNC_END(feroceon_dma_unmap_area) .align 5 -ENTRY(cpu_feroceon_dcache_clean_area) +SYM_TYPED_FUNC_START(cpu_feroceon_dcache_clean_area) #if defined(CONFIG_CACHE_FEROCEON_L2) && \ !defined(CONFIG_CACHE_FEROCEON_L2_WRITETHROUGH) mov r2, r0 @@ -434,6 +437,7 @@ ENTRY(cpu_feroceon_dcache_clean_area) #endif mcr p15, 0, r0, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(cpu_feroceon_dcache_clean_area) /* =============================== PageTable ============================== */ @@ -445,7 +449,7 @@ ENTRY(cpu_feroceon_dcache_clean_area) * pgd: new page tables */ .align 5 -ENTRY(cpu_feroceon_switch_mm) +SYM_TYPED_FUNC_START(cpu_feroceon_switch_mm) #ifdef CONFIG_MMU /* * Note: we wish to call __flush_whole_cache but we need to preserve @@ -466,6 +470,7 @@ ENTRY(cpu_feroceon_switch_mm) #else ret lr #endif +SYM_FUNC_END(cpu_feroceon_switch_mm) /* * cpu_feroceon_set_pte_ext(ptep, pte, ext) @@ -473,7 +478,7 @@ ENTRY(cpu_feroceon_switch_mm) * Set a PTE and flush it out */ .align 5 -ENTRY(cpu_feroceon_set_pte_ext) +SYM_TYPED_FUNC_START(cpu_feroceon_set_pte_ext) #ifdef CONFIG_MMU armv3_set_pte_ext wc_disable=0 mov r0, r0 @@ -485,21 +490,22 @@ ENTRY(cpu_feroceon_set_pte_ext) mcr p15, 0, r0, c7, c10, 4 @ drain WB #endif ret lr +SYM_FUNC_END(cpu_feroceon_set_pte_ext) /* Suspend/resume support: taken from arch/arm/mm/proc-arm926.S */ .globl cpu_feroceon_suspend_size .equ cpu_feroceon_suspend_size, 4 * 3 #ifdef CONFIG_ARM_CPU_SUSPEND -ENTRY(cpu_feroceon_do_suspend) +SYM_TYPED_FUNC_START(cpu_feroceon_do_suspend) stmfd sp!, {r4 - r6, lr} mrc p15, 0, r4, c13, c0, 0 @ PID mrc p15, 0, r5, c3, c0, 0 @ Domain ID mrc p15, 0, r6, c1, c0, 0 @ Control register stmia r0, {r4 - r6} ldmfd sp!, {r4 - r6, pc} -ENDPROC(cpu_feroceon_do_suspend) +SYM_FUNC_END(cpu_feroceon_do_suspend) -ENTRY(cpu_feroceon_do_resume) +SYM_TYPED_FUNC_START(cpu_feroceon_do_resume) mov ip, #0 mcr p15, 0, ip, c8, c7, 0 @ invalidate I+D TLBs mcr p15, 0, ip, c7, c7, 0 @ invalidate I+D caches @@ -509,7 +515,7 @@ ENTRY(cpu_feroceon_do_resume) mcr p15, 0, r1, c2, c0, 0 @ TTB address mov r0, r6 @ control register b cpu_resume_mmu -ENDPROC(cpu_feroceon_do_resume) +SYM_FUNC_END(cpu_feroceon_do_resume) #endif .type __feroceon_setup, #function diff --git a/arch/arm/mm/proc-mohawk.S b/arch/arm/mm/proc-mohawk.S index 5361bba61751..091f6c6719a8 100644 --- a/arch/arm/mm/proc-mohawk.S +++ b/arch/arm/mm/proc-mohawk.S @@ -32,18 +32,20 @@ /* * cpu_mohawk_proc_init() */ -ENTRY(cpu_mohawk_proc_init) +SYM_TYPED_FUNC_START(cpu_mohawk_proc_init) ret lr +SYM_FUNC_END(cpu_mohawk_proc_init) /* * cpu_mohawk_proc_fin() */ -ENTRY(cpu_mohawk_proc_fin) +SYM_TYPED_FUNC_START(cpu_mohawk_proc_fin) mrc p15, 0, r0, c1, c0, 0 @ ctrl register bic r0, r0, #0x1800 @ ...iz........... bic r0, r0, #0x0006 @ .............ca. mcr p15, 0, r0, c1, c0, 0 @ disable caches ret lr +SYM_FUNC_END(cpu_mohawk_proc_fin) /* * cpu_mohawk_reset(loc) @@ -58,7 +60,7 @@ ENTRY(cpu_mohawk_proc_fin) */ .align 5 .pushsection .idmap.text, "ax" -ENTRY(cpu_mohawk_reset) +SYM_TYPED_FUNC_START(cpu_mohawk_reset) mov ip, #0 mcr p15, 0, ip, c7, c7, 0 @ invalidate I,D caches mcr p15, 0, ip, c7, c10, 4 @ drain WB @@ -68,7 +70,7 @@ ENTRY(cpu_mohawk_reset) bic ip, ip, #0x1100 @ ...i...s........ mcr p15, 0, ip, c1, c0, 0 @ ctrl register ret r0 -ENDPROC(cpu_mohawk_reset) +SYM_FUNC_END(cpu_mohawk_reset) .popsection /* @@ -77,11 +79,12 @@ ENDPROC(cpu_mohawk_reset) * Called with IRQs disabled */ .align 5 -ENTRY(cpu_mohawk_do_idle) +SYM_TYPED_FUNC_START(cpu_mohawk_do_idle) mov r0, #0 mcr p15, 0, r0, c7, c10, 4 @ drain write buffer mcr p15, 0, r0, c7, c0, 4 @ wait for interrupt ret lr +SYM_FUNC_END(cpu_mohawk_do_idle) /* * flush_icache_all() @@ -296,13 +299,14 @@ SYM_TYPED_FUNC_START(mohawk_dma_unmap_area) ret lr SYM_FUNC_END(mohawk_dma_unmap_area) -ENTRY(cpu_mohawk_dcache_clean_area) +SYM_TYPED_FUNC_START(cpu_mohawk_dcache_clean_area) 1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry add r0, r0, #CACHE_DLINESIZE subs r1, r1, #CACHE_DLINESIZE bhi 1b mcr p15, 0, r0, c7, c10, 4 @ drain WB ret lr +SYM_FUNC_END(cpu_mohawk_dcache_clean_area) /* * cpu_mohawk_switch_mm(pgd) @@ -312,7 +316,7 @@ ENTRY(cpu_mohawk_dcache_clean_area) * pgd: new page tables */ .align 5 -ENTRY(cpu_mohawk_switch_mm) +SYM_TYPED_FUNC_START(cpu_mohawk_switch_mm) mov ip, #0 mcr p15, 0, ip, c7, c14, 0 @ clean & invalidate all D cache mcr p15, 0, ip, c7, c5, 0 @ invalidate I cache @@ -321,6 +325,7 @@ ENTRY(cpu_mohawk_switch_mm) mcr p15, 0, r0, c2, c0, 0 @ load page table pointer mcr p15, 0, ip, c8, c7, 0 @ invalidate I & D TLBs ret lr +SYM_FUNC_END(cpu_mohawk_switch_mm) /* * cpu_mohawk_set_pte_ext(ptep, pte, ext) @@ -328,7 +333,7 @@ ENTRY(cpu_mohawk_switch_mm) * Set a PTE and flush it out */ .align 5 -ENTRY(cpu_mohawk_set_pte_ext) +SYM_TYPED_FUNC_START(cpu_mohawk_set_pte_ext) #ifdef CONFIG_MMU armv3_set_pte_ext mov r0, r0 @@ -336,11 +341,12 @@ ENTRY(cpu_mohawk_set_pte_ext) mcr p15, 0, r0, c7, c10, 4 @ drain WB ret lr #endif +SYM_FUNC_END(cpu_mohawk_set_pte_ext) .globl cpu_mohawk_suspend_size .equ cpu_mohawk_suspend_size, 4 * 6 #ifdef CONFIG_ARM_CPU_SUSPEND -ENTRY(cpu_mohawk_do_suspend) +SYM_TYPED_FUNC_START(cpu_mohawk_do_suspend) stmfd sp!, {r4 - r9, lr} mrc p14, 0, r4, c6, c0, 0 @ clock configuration, for turbo mode mrc p15, 0, r5, c15, c1, 0 @ CP access reg @@ -351,9 +357,9 @@ ENTRY(cpu_mohawk_do_suspend) bic r4, r4, #2 @ clear frequency change bit stmia r0, {r4 - r9} @ store cp regs ldmia sp!, {r4 - r9, pc} -ENDPROC(cpu_mohawk_do_suspend) +SYM_FUNC_END(cpu_mohawk_do_suspend) -ENTRY(cpu_mohawk_do_resume) +SYM_TYPED_FUNC_START(cpu_mohawk_do_resume) ldmia r0, {r4 - r9} @ load cp regs mov ip, #0 mcr p15, 0, ip, c7, c7, 0 @ invalidate I & D caches, BTB @@ -369,7 +375,7 @@ ENTRY(cpu_mohawk_do_resume) mcr p15, 0, r8, c1, c0, 1 @ auxiliary control reg mov r0, r9 @ control register b cpu_resume_mmu -ENDPROC(cpu_mohawk_do_resume) +SYM_FUNC_END(cpu_mohawk_do_resume) #endif .type __mohawk_setup, #function diff --git a/arch/arm/mm/proc-sa110.S b/arch/arm/mm/proc-sa110.S index 4071f7a61cb6..3da76fab8ac3 100644 --- a/arch/arm/mm/proc-sa110.S +++ b/arch/arm/mm/proc-sa110.S @@ -12,6 +12,7 @@ */ #include #include +#include #include #include #include @@ -32,15 +33,16 @@ /* * cpu_sa110_proc_init() */ -ENTRY(cpu_sa110_proc_init) +SYM_TYPED_FUNC_START(cpu_sa110_proc_init) mov r0, #0 mcr p15, 0, r0, c15, c1, 2 @ Enable clock switching ret lr +SYM_FUNC_END(cpu_sa110_proc_init) /* * cpu_sa110_proc_fin() */ -ENTRY(cpu_sa110_proc_fin) +SYM_TYPED_FUNC_START(cpu_sa110_proc_fin) mov r0, #0 mcr p15, 0, r0, c15, c2, 2 @ Disable clock switching mrc p15, 0, r0, c1, c0, 0 @ ctrl register @@ -48,6 +50,7 @@ ENTRY(cpu_sa110_proc_fin) bic r0, r0, #0x000e @ ............wca. mcr p15, 0, r0, c1, c0, 0 @ disable caches ret lr +SYM_FUNC_END(cpu_sa110_proc_fin) /* * cpu_sa110_reset(loc) @@ -60,7 +63,7 @@ ENTRY(cpu_sa110_proc_fin) */ .align 5 .pushsection .idmap.text, "ax" -ENTRY(cpu_sa110_reset) +SYM_TYPED_FUNC_START(cpu_sa110_reset) mov ip, #0 mcr p15, 0, ip, c7, c7, 0 @ invalidate I,D caches mcr p15, 0, ip, c7, c10, 4 @ drain WB @@ -72,7 +75,7 @@ ENTRY(cpu_sa110_reset) bic ip, ip, #0x1100 @ ...i...s........ mcr p15, 0, ip, c1, c0, 0 @ ctrl register ret r0 -ENDPROC(cpu_sa110_reset) +SYM_FUNC_END(cpu_sa110_reset) .popsection /* @@ -88,7 +91,7 @@ ENDPROC(cpu_sa110_reset) */ .align 5 -ENTRY(cpu_sa110_do_idle) +SYM_TYPED_FUNC_START(cpu_sa110_do_idle) mcr p15, 0, ip, c15, c2, 2 @ disable clock switching ldr r1, =UNCACHEABLE_ADDR @ load from uncacheable loc ldr r1, [r1, #0] @ force switch to MCLK @@ -101,6 +104,7 @@ ENTRY(cpu_sa110_do_idle) mov r0, r0 @ safety mcr p15, 0, r0, c15, c1, 2 @ enable clock switching ret lr +SYM_FUNC_END(cpu_sa110_do_idle) /* ================================= CACHE ================================ */ @@ -113,12 +117,13 @@ ENTRY(cpu_sa110_do_idle) * addr: cache-unaligned virtual address */ .align 5 -ENTRY(cpu_sa110_dcache_clean_area) +SYM_TYPED_FUNC_START(cpu_sa110_dcache_clean_area) 1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry add r0, r0, #DCACHELINESIZE subs r1, r1, #DCACHELINESIZE bhi 1b ret lr +SYM_FUNC_END(cpu_sa110_dcache_clean_area) /* =============================== PageTable ============================== */ @@ -130,7 +135,7 @@ ENTRY(cpu_sa110_dcache_clean_area) * pgd: new page tables */ .align 5 -ENTRY(cpu_sa110_switch_mm) +SYM_TYPED_FUNC_START(cpu_sa110_switch_mm) #ifdef CONFIG_MMU str lr, [sp, #-4]! bl v4wb_flush_kern_cache_all @ clears IP @@ -140,6 +145,7 @@ ENTRY(cpu_sa110_switch_mm) #else ret lr #endif +SYM_FUNC_END(cpu_sa110_switch_mm) /* * cpu_sa110_set_pte_ext(ptep, pte, ext) @@ -147,7 +153,7 @@ ENTRY(cpu_sa110_switch_mm) * Set a PTE and flush it out */ .align 5 -ENTRY(cpu_sa110_set_pte_ext) +SYM_TYPED_FUNC_START(cpu_sa110_set_pte_ext) #ifdef CONFIG_MMU armv3_set_pte_ext wc_disable=0 mov r0, r0 @@ -155,6 +161,7 @@ ENTRY(cpu_sa110_set_pte_ext) mcr p15, 0, r0, c7, c10, 4 @ drain WB #endif ret lr +SYM_FUNC_END(cpu_sa110_set_pte_ext) .type __sa110_setup, #function __sa110_setup: diff --git a/arch/arm/mm/proc-sa1100.S b/arch/arm/mm/proc-sa1100.S index e723bd4119d3..7c496195e440 100644 --- a/arch/arm/mm/proc-sa1100.S +++ b/arch/arm/mm/proc-sa1100.S @@ -17,6 +17,7 @@ */ #include #include +#include #include #include #include @@ -36,11 +37,12 @@ /* * cpu_sa1100_proc_init() */ -ENTRY(cpu_sa1100_proc_init) +SYM_TYPED_FUNC_START(cpu_sa1100_proc_init) mov r0, #0 mcr p15, 0, r0, c15, c1, 2 @ Enable clock switching mcr p15, 0, r0, c9, c0, 5 @ Allow read-buffer operations from userland ret lr +SYM_FUNC_END(cpu_sa1100_proc_init) /* * cpu_sa1100_proc_fin() @@ -49,13 +51,14 @@ ENTRY(cpu_sa1100_proc_init) * - Disable interrupts * - Clean and turn off caches. */ -ENTRY(cpu_sa1100_proc_fin) +SYM_TYPED_FUNC_START(cpu_sa1100_proc_fin) mcr p15, 0, ip, c15, c2, 2 @ Disable clock switching mrc p15, 0, r0, c1, c0, 0 @ ctrl register bic r0, r0, #0x1000 @ ...i............ bic r0, r0, #0x000e @ ............wca. mcr p15, 0, r0, c1, c0, 0 @ disable caches ret lr +SYM_FUNC_END(cpu_sa1100_proc_fin) /* * cpu_sa1100_reset(loc) @@ -68,7 +71,7 @@ ENTRY(cpu_sa1100_proc_fin) */ .align 5 .pushsection .idmap.text, "ax" -ENTRY(cpu_sa1100_reset) +SYM_TYPED_FUNC_START(cpu_sa1100_reset) mov ip, #0 mcr p15, 0, ip, c7, c7, 0 @ invalidate I,D caches mcr p15, 0, ip, c7, c10, 4 @ drain WB @@ -80,7 +83,7 @@ ENTRY(cpu_sa1100_reset) bic ip, ip, #0x1100 @ ...i...s........ mcr p15, 0, ip, c1, c0, 0 @ ctrl register ret r0 -ENDPROC(cpu_sa1100_reset) +SYM_FUNC_END(cpu_sa1100_reset) .popsection /* @@ -95,7 +98,7 @@ ENDPROC(cpu_sa1100_reset) * 3 = switch to fast processor clock */ .align 5 -ENTRY(cpu_sa1100_do_idle) +SYM_TYPED_FUNC_START(cpu_sa1100_do_idle) mov r0, r0 @ 4 nop padding mov r0, r0 mov r0, r0 @@ -111,6 +114,7 @@ ENTRY(cpu_sa1100_do_idle) mov r0, r0 @ safety mcr p15, 0, r0, c15, c1, 2 @ enable clock switching ret lr +SYM_FUNC_END(cpu_sa1100_do_idle) /* ================================= CACHE ================================ */ @@ -123,12 +127,13 @@ ENTRY(cpu_sa1100_do_idle) * addr: cache-unaligned virtual address */ .align 5 -ENTRY(cpu_sa1100_dcache_clean_area) +SYM_TYPED_FUNC_START(cpu_sa1100_dcache_clean_area) 1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry add r0, r0, #DCACHELINESIZE subs r1, r1, #DCACHELINESIZE bhi 1b ret lr +SYM_FUNC_END(cpu_sa1100_dcache_clean_area) /* =============================== PageTable ============================== */ @@ -140,7 +145,7 @@ ENTRY(cpu_sa1100_dcache_clean_area) * pgd: new page tables */ .align 5 -ENTRY(cpu_sa1100_switch_mm) +SYM_TYPED_FUNC_START(cpu_sa1100_switch_mm) #ifdef CONFIG_MMU str lr, [sp, #-4]! bl v4wb_flush_kern_cache_all @ clears IP @@ -151,6 +156,7 @@ ENTRY(cpu_sa1100_switch_mm) #else ret lr #endif +SYM_FUNC_END(cpu_sa1100_switch_mm) /* * cpu_sa1100_set_pte_ext(ptep, pte, ext) @@ -158,7 +164,7 @@ ENTRY(cpu_sa1100_switch_mm) * Set a PTE and flush it out */ .align 5 -ENTRY(cpu_sa1100_set_pte_ext) +SYM_TYPED_FUNC_START(cpu_sa1100_set_pte_ext) #ifdef CONFIG_MMU armv3_set_pte_ext wc_disable=0 mov r0, r0 @@ -166,20 +172,21 @@ ENTRY(cpu_sa1100_set_pte_ext) mcr p15, 0, r0, c7, c10, 4 @ drain WB #endif ret lr +SYM_FUNC_END(cpu_sa1100_set_pte_ext) .globl cpu_sa1100_suspend_size .equ cpu_sa1100_suspend_size, 4 * 3 #ifdef CONFIG_ARM_CPU_SUSPEND -ENTRY(cpu_sa1100_do_suspend) +SYM_TYPED_FUNC_START(cpu_sa1100_do_suspend) stmfd sp!, {r4 - r6, lr} mrc p15, 0, r4, c3, c0, 0 @ domain ID mrc p15, 0, r5, c13, c0, 0 @ PID mrc p15, 0, r6, c1, c0, 0 @ control reg stmia r0, {r4 - r6} @ store cp regs ldmfd sp!, {r4 - r6, pc} -ENDPROC(cpu_sa1100_do_suspend) +SYM_FUNC_END(cpu_sa1100_do_suspend) -ENTRY(cpu_sa1100_do_resume) +SYM_TYPED_FUNC_START(cpu_sa1100_do_resume) ldmia r0, {r4 - r6} @ load cp regs mov ip, #0 mcr p15, 0, ip, c8, c7, 0 @ flush I+D TLBs @@ -192,7 +199,7 @@ ENTRY(cpu_sa1100_do_resume) mcr p15, 0, r5, c13, c0, 0 @ PID mov r0, r6 @ control register b cpu_resume_mmu -ENDPROC(cpu_sa1100_do_resume) +SYM_FUNC_END(cpu_sa1100_do_resume) #endif .type __sa1100_setup, #function diff --git a/arch/arm/mm/proc-v6.S b/arch/arm/mm/proc-v6.S index 203dff89ab1a..90a01f5950b9 100644 --- a/arch/arm/mm/proc-v6.S +++ b/arch/arm/mm/proc-v6.S @@ -8,6 +8,7 @@ * This is the "shell" of the ARMv6 processor support. */ #include +#include #include #include #include @@ -34,15 +35,17 @@ .arch armv6 -ENTRY(cpu_v6_proc_init) +SYM_TYPED_FUNC_START(cpu_v6_proc_init) ret lr +SYM_FUNC_END(cpu_v6_proc_init) -ENTRY(cpu_v6_proc_fin) +SYM_TYPED_FUNC_START(cpu_v6_proc_fin) mrc p15, 0, r0, c1, c0, 0 @ ctrl register bic r0, r0, #0x1000 @ ...i............ bic r0, r0, #0x0006 @ .............ca. mcr p15, 0, r0, c1, c0, 0 @ disable caches ret lr +SYM_FUNC_END(cpu_v6_proc_fin) /* * cpu_v6_reset(loc) @@ -55,14 +58,14 @@ ENTRY(cpu_v6_proc_fin) */ .align 5 .pushsection .idmap.text, "ax" -ENTRY(cpu_v6_reset) +SYM_TYPED_FUNC_START(cpu_v6_reset) mrc p15, 0, r1, c1, c0, 0 @ ctrl register bic r1, r1, #0x1 @ ...............m mcr p15, 0, r1, c1, c0, 0 @ disable MMU mov r1, #0 mcr p15, 0, r1, c7, c5, 4 @ ISB ret r0 -ENDPROC(cpu_v6_reset) +SYM_FUNC_END(cpu_v6_reset) .popsection /* @@ -72,18 +75,20 @@ ENDPROC(cpu_v6_reset) * * IRQs are already disabled. */ -ENTRY(cpu_v6_do_idle) +SYM_TYPED_FUNC_START(cpu_v6_do_idle) mov r1, #0 mcr p15, 0, r1, c7, c10, 4 @ DWB - WFI may enter a low-power mode mcr p15, 0, r1, c7, c0, 4 @ wait for interrupt ret lr +SYM_FUNC_END(cpu_v6_do_idle) -ENTRY(cpu_v6_dcache_clean_area) +SYM_TYPED_FUNC_START(cpu_v6_dcache_clean_area) 1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry add r0, r0, #D_CACHE_LINE_SIZE subs r1, r1, #D_CACHE_LINE_SIZE bhi 1b ret lr +SYM_FUNC_END(cpu_v6_dcache_clean_area) /* * cpu_v6_switch_mm(pgd_phys, tsk) @@ -95,7 +100,7 @@ ENTRY(cpu_v6_dcache_clean_area) * It is assumed that: * - we are not using split page tables */ -ENTRY(cpu_v6_switch_mm) +SYM_TYPED_FUNC_START(cpu_v6_switch_mm) #ifdef CONFIG_MMU mov r2, #0 mmid r1, r1 @ get mm->context.id @@ -113,6 +118,7 @@ ENTRY(cpu_v6_switch_mm) mcr p15, 0, r1, c13, c0, 1 @ set context ID #endif ret lr +SYM_FUNC_END(cpu_v6_switch_mm) /* * cpu_v6_set_pte_ext(ptep, pte, ext) @@ -126,17 +132,18 @@ ENTRY(cpu_v6_switch_mm) */ armv6_mt_table cpu_v6 -ENTRY(cpu_v6_set_pte_ext) +SYM_TYPED_FUNC_START(cpu_v6_set_pte_ext) #ifdef CONFIG_MMU armv6_set_pte_ext cpu_v6 #endif ret lr +SYM_FUNC_END(cpu_v6_set_pte_ext) /* Suspend/resume support: taken from arch/arm/mach-s3c64xx/sleep.S */ .globl cpu_v6_suspend_size .equ cpu_v6_suspend_size, 4 * 6 #ifdef CONFIG_ARM_CPU_SUSPEND -ENTRY(cpu_v6_do_suspend) +SYM_TYPED_FUNC_START(cpu_v6_do_suspend) stmfd sp!, {r4 - r9, lr} mrc p15, 0, r4, c13, c0, 0 @ FCSE/PID #ifdef CONFIG_MMU @@ -148,9 +155,9 @@ ENTRY(cpu_v6_do_suspend) mrc p15, 0, r9, c1, c0, 0 @ control register stmia r0, {r4 - r9} ldmfd sp!, {r4- r9, pc} -ENDPROC(cpu_v6_do_suspend) +SYM_FUNC_END(cpu_v6_do_suspend) -ENTRY(cpu_v6_do_resume) +SYM_TYPED_FUNC_START(cpu_v6_do_resume) mov ip, #0 mcr p15, 0, ip, c7, c14, 0 @ clean+invalidate D cache mcr p15, 0, ip, c7, c5, 0 @ invalidate I cache @@ -172,7 +179,7 @@ ENTRY(cpu_v6_do_resume) mcr p15, 0, ip, c7, c5, 4 @ ISB mov r0, r9 @ control register b cpu_resume_mmu -ENDPROC(cpu_v6_do_resume) +SYM_FUNC_END(cpu_v6_do_resume) #endif string cpu_v6_name, "ARMv6-compatible processor" diff --git a/arch/arm/mm/proc-v7-2level.S b/arch/arm/mm/proc-v7-2level.S index 0a3083ad19c2..1007702fcaf3 100644 --- a/arch/arm/mm/proc-v7-2level.S +++ b/arch/arm/mm/proc-v7-2level.S @@ -40,7 +40,7 @@ * even on Cortex-A8 revisions not affected by 430973. * If IBE is not set, the flush BTAC/BTB won't do anything. */ -ENTRY(cpu_v7_switch_mm) +SYM_TYPED_FUNC_START(cpu_v7_switch_mm) #ifdef CONFIG_MMU mmid r1, r1 @ get mm->context.id ALT_SMP(orr r0, r0, #TTB_FLAGS_SMP) @@ -59,7 +59,7 @@ ENTRY(cpu_v7_switch_mm) isb #endif bx lr -ENDPROC(cpu_v7_switch_mm) +SYM_FUNC_END(cpu_v7_switch_mm) /* * cpu_v7_set_pte_ext(ptep, pte) @@ -71,7 +71,7 @@ ENDPROC(cpu_v7_switch_mm) * - pte - PTE value to store * - ext - value for extended PTE bits */ -ENTRY(cpu_v7_set_pte_ext) +SYM_TYPED_FUNC_START(cpu_v7_set_pte_ext) #ifdef CONFIG_MMU str r1, [r0] @ linux version @@ -106,7 +106,7 @@ ENTRY(cpu_v7_set_pte_ext) ALT_UP (mcr p15, 0, r0, c7, c10, 1) @ flush_pte #endif bx lr -ENDPROC(cpu_v7_set_pte_ext) +SYM_FUNC_END(cpu_v7_set_pte_ext) /* * Memory region attributes with SCTLR.TRE=1 diff --git a/arch/arm/mm/proc-v7-3level.S b/arch/arm/mm/proc-v7-3level.S index 131984462d0d..bdabc15cde56 100644 --- a/arch/arm/mm/proc-v7-3level.S +++ b/arch/arm/mm/proc-v7-3level.S @@ -42,7 +42,7 @@ * Set the translation table base pointer to be pgd_phys (physical address of * the new TTB). */ -ENTRY(cpu_v7_switch_mm) +SYM_TYPED_FUNC_START(cpu_v7_switch_mm) #ifdef CONFIG_MMU mmid r2, r2 asid r2, r2 @@ -51,7 +51,7 @@ ENTRY(cpu_v7_switch_mm) isb #endif ret lr -ENDPROC(cpu_v7_switch_mm) +SYM_FUNC_END(cpu_v7_switch_mm) #ifdef __ARMEB__ #define rl r3 @@ -68,7 +68,7 @@ ENDPROC(cpu_v7_switch_mm) * - ptep - pointer to level 3 translation table entry * - pte - PTE value to store (64-bit in r2 and r3) */ -ENTRY(cpu_v7_set_pte_ext) +SYM_TYPED_FUNC_START(cpu_v7_set_pte_ext) #ifdef CONFIG_MMU tst rl, #L_PTE_VALID beq 1f @@ -87,7 +87,7 @@ ENTRY(cpu_v7_set_pte_ext) ALT_UP (mcr p15, 0, r0, c7, c10, 1) @ flush_pte #endif ret lr -ENDPROC(cpu_v7_set_pte_ext) +SYM_FUNC_END(cpu_v7_set_pte_ext) /* * Memory region attributes for LPAE (defined in pgtable-3level.h): diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S index 193c7aeb6703..5fb9a6aecb00 100644 --- a/arch/arm/mm/proc-v7.S +++ b/arch/arm/mm/proc-v7.S @@ -7,6 +7,7 @@ * This is the "shell" of the ARMv7 processor support. */ #include +#include #include #include #include @@ -26,17 +27,17 @@ .arch armv7-a -ENTRY(cpu_v7_proc_init) +SYM_TYPED_FUNC_START(cpu_v7_proc_init) ret lr -ENDPROC(cpu_v7_proc_init) +SYM_FUNC_END(cpu_v7_proc_init) -ENTRY(cpu_v7_proc_fin) +SYM_TYPED_FUNC_START(cpu_v7_proc_fin) mrc p15, 0, r0, c1, c0, 0 @ ctrl register bic r0, r0, #0x1000 @ ...i............ bic r0, r0, #0x0006 @ .............ca. mcr p15, 0, r0, c1, c0, 0 @ disable caches ret lr -ENDPROC(cpu_v7_proc_fin) +SYM_FUNC_END(cpu_v7_proc_fin) /* * cpu_v7_reset(loc, hyp) @@ -53,7 +54,7 @@ ENDPROC(cpu_v7_proc_fin) */ .align 5 .pushsection .idmap.text, "ax" -ENTRY(cpu_v7_reset) +SYM_TYPED_FUNC_START(cpu_v7_reset) mrc p15, 0, r2, c1, c0, 0 @ ctrl register bic r2, r2, #0x1 @ ...............m THUMB( bic r2, r2, #1 << 30 ) @ SCTLR.TE (Thumb exceptions) @@ -64,7 +65,7 @@ ENTRY(cpu_v7_reset) bne __hyp_soft_restart #endif bx r0 -ENDPROC(cpu_v7_reset) +SYM_FUNC_END(cpu_v7_reset) .popsection /* @@ -74,13 +75,13 @@ ENDPROC(cpu_v7_reset) * * IRQs are already disabled. */ -ENTRY(cpu_v7_do_idle) +SYM_TYPED_FUNC_START(cpu_v7_do_idle) dsb @ WFI may enter a low-power mode wfi ret lr -ENDPROC(cpu_v7_do_idle) +SYM_FUNC_END(cpu_v7_do_idle) -ENTRY(cpu_v7_dcache_clean_area) +SYM_TYPED_FUNC_START(cpu_v7_dcache_clean_area) ALT_SMP(W(nop)) @ MP extensions imply L1 PTW ALT_UP_B(1f) ret lr @@ -91,38 +92,39 @@ ENTRY(cpu_v7_dcache_clean_area) bhi 2b dsb ishst ret lr -ENDPROC(cpu_v7_dcache_clean_area) +SYM_FUNC_END(cpu_v7_dcache_clean_area) #ifdef CONFIG_ARM_PSCI .arch_extension sec -ENTRY(cpu_v7_smc_switch_mm) +SYM_TYPED_FUNC_START(cpu_v7_smc_switch_mm) stmfd sp!, {r0 - r3} movw r0, #:lower16:ARM_SMCCC_ARCH_WORKAROUND_1 movt r0, #:upper16:ARM_SMCCC_ARCH_WORKAROUND_1 smc #0 ldmfd sp!, {r0 - r3} b cpu_v7_switch_mm -ENDPROC(cpu_v7_smc_switch_mm) +SYM_FUNC_END(cpu_v7_smc_switch_mm) .arch_extension virt -ENTRY(cpu_v7_hvc_switch_mm) +SYM_TYPED_FUNC_START(cpu_v7_hvc_switch_mm) stmfd sp!, {r0 - r3} movw r0, #:lower16:ARM_SMCCC_ARCH_WORKAROUND_1 movt r0, #:upper16:ARM_SMCCC_ARCH_WORKAROUND_1 hvc #0 ldmfd sp!, {r0 - r3} b cpu_v7_switch_mm -ENDPROC(cpu_v7_hvc_switch_mm) +SYM_FUNC_END(cpu_v7_hvc_switch_mm) #endif -ENTRY(cpu_v7_iciallu_switch_mm) + +SYM_TYPED_FUNC_START(cpu_v7_iciallu_switch_mm) mov r3, #0 mcr p15, 0, r3, c7, c5, 0 @ ICIALLU b cpu_v7_switch_mm -ENDPROC(cpu_v7_iciallu_switch_mm) -ENTRY(cpu_v7_bpiall_switch_mm) +SYM_FUNC_END(cpu_v7_iciallu_switch_mm) +SYM_TYPED_FUNC_START(cpu_v7_bpiall_switch_mm) mov r3, #0 mcr p15, 0, r3, c7, c5, 6 @ flush BTAC/BTB b cpu_v7_switch_mm -ENDPROC(cpu_v7_bpiall_switch_mm) +SYM_FUNC_END(cpu_v7_bpiall_switch_mm) string cpu_v7_name, "ARMv7 Processor" .align @@ -131,7 +133,7 @@ ENDPROC(cpu_v7_bpiall_switch_mm) .globl cpu_v7_suspend_size .equ cpu_v7_suspend_size, 4 * 9 #ifdef CONFIG_ARM_CPU_SUSPEND -ENTRY(cpu_v7_do_suspend) +SYM_TYPED_FUNC_START(cpu_v7_do_suspend) stmfd sp!, {r4 - r11, lr} mrc p15, 0, r4, c13, c0, 0 @ FCSE/PID mrc p15, 0, r5, c13, c0, 3 @ User r/o thread ID @@ -150,9 +152,9 @@ ENTRY(cpu_v7_do_suspend) mrc p15, 0, r10, c1, c0, 2 @ Co-processor access control stmia r0, {r5 - r11} ldmfd sp!, {r4 - r11, pc} -ENDPROC(cpu_v7_do_suspend) +SYM_FUNC_END(cpu_v7_do_suspend) -ENTRY(cpu_v7_do_resume) +SYM_TYPED_FUNC_START(cpu_v7_do_resume) mov ip, #0 mcr p15, 0, ip, c7, c5, 0 @ invalidate I cache mcr p15, 0, ip, c13, c0, 1 @ set reserved context ID @@ -186,22 +188,22 @@ ENTRY(cpu_v7_do_resume) dsb mov r0, r8 @ control register b cpu_resume_mmu -ENDPROC(cpu_v7_do_resume) +SYM_FUNC_END(cpu_v7_do_resume) #endif .globl cpu_ca9mp_suspend_size .equ cpu_ca9mp_suspend_size, cpu_v7_suspend_size + 4 * 2 #ifdef CONFIG_ARM_CPU_SUSPEND -ENTRY(cpu_ca9mp_do_suspend) +SYM_TYPED_FUNC_START(cpu_ca9mp_do_suspend) stmfd sp!, {r4 - r5} mrc p15, 0, r4, c15, c0, 1 @ Diagnostic register mrc p15, 0, r5, c15, c0, 0 @ Power register stmia r0!, {r4 - r5} ldmfd sp!, {r4 - r5} b cpu_v7_do_suspend -ENDPROC(cpu_ca9mp_do_suspend) +SYM_FUNC_END(cpu_ca9mp_do_suspend) -ENTRY(cpu_ca9mp_do_resume) +SYM_TYPED_FUNC_START(cpu_ca9mp_do_resume) ldmia r0!, {r4 - r5} mrc p15, 0, r10, c15, c0, 1 @ Read Diagnostic register teq r4, r10 @ Already restored? @@ -210,7 +212,7 @@ ENTRY(cpu_ca9mp_do_resume) teq r5, r10 @ Already restored? mcrne p15, 0, r5, c15, c0, 0 @ No, so restore it b cpu_v7_do_resume -ENDPROC(cpu_ca9mp_do_resume) +SYM_FUNC_END(cpu_ca9mp_do_resume) #endif #ifdef CONFIG_CPU_PJ4B @@ -220,18 +222,18 @@ ENDPROC(cpu_ca9mp_do_resume) globl_equ cpu_pj4b_proc_fin, cpu_v7_proc_fin globl_equ cpu_pj4b_reset, cpu_v7_reset #ifdef CONFIG_PJ4B_ERRATA_4742 -ENTRY(cpu_pj4b_do_idle) +SYM_TYPED_FUNC_START(cpu_pj4b_do_idle) dsb @ WFI may enter a low-power mode wfi dsb @barrier ret lr -ENDPROC(cpu_pj4b_do_idle) +SYM_FUNC_END(cpu_pj4b_do_idle) #else globl_equ cpu_pj4b_do_idle, cpu_v7_do_idle #endif globl_equ cpu_pj4b_dcache_clean_area, cpu_v7_dcache_clean_area #ifdef CONFIG_ARM_CPU_SUSPEND -ENTRY(cpu_pj4b_do_suspend) +SYM_TYPED_FUNC_START(cpu_pj4b_do_suspend) stmfd sp!, {r6 - r10} mrc p15, 1, r6, c15, c1, 0 @ save CP15 - extra features mrc p15, 1, r7, c15, c2, 0 @ save CP15 - Aux Func Modes Ctrl 0 @@ -241,9 +243,9 @@ ENTRY(cpu_pj4b_do_suspend) stmia r0!, {r6 - r10} ldmfd sp!, {r6 - r10} b cpu_v7_do_suspend -ENDPROC(cpu_pj4b_do_suspend) +SYM_FUNC_END(cpu_pj4b_do_suspend) -ENTRY(cpu_pj4b_do_resume) +SYM_TYPED_FUNC_START(cpu_pj4b_do_resume) ldmia r0!, {r6 - r10} mcr p15, 1, r6, c15, c1, 0 @ restore CP15 - extra features mcr p15, 1, r7, c15, c2, 0 @ restore CP15 - Aux Func Modes Ctrl 0 @@ -251,7 +253,7 @@ ENTRY(cpu_pj4b_do_resume) mcr p15, 1, r9, c15, c1, 1 @ restore CP15 - Aux Debug Modes Ctrl 1 mcr p15, 0, r10, c9, c14, 0 @ restore CP15 - PMC b cpu_v7_do_resume -ENDPROC(cpu_pj4b_do_resume) +SYM_FUNC_END(cpu_pj4b_do_resume) #endif .globl cpu_pj4b_suspend_size .equ cpu_pj4b_suspend_size, cpu_v7_suspend_size + 4 * 5 diff --git a/arch/arm/mm/proc-v7m.S b/arch/arm/mm/proc-v7m.S index d65a12f851a9..d4675603593b 100644 --- a/arch/arm/mm/proc-v7m.S +++ b/arch/arm/mm/proc-v7m.S @@ -8,18 +8,19 @@ * This is the "shell" of the ARMv7-M processor support. */ #include +#include #include #include #include #include "proc-macros.S" -ENTRY(cpu_v7m_proc_init) +SYM_TYPED_FUNC_START(cpu_v7m_proc_init) ret lr -ENDPROC(cpu_v7m_proc_init) +SYM_FUNC_END(cpu_v7m_proc_init) -ENTRY(cpu_v7m_proc_fin) +SYM_TYPED_FUNC_START(cpu_v7m_proc_fin) ret lr -ENDPROC(cpu_v7m_proc_fin) +SYM_FUNC_END(cpu_v7m_proc_fin) /* * cpu_v7m_reset(loc) @@ -31,9 +32,9 @@ ENDPROC(cpu_v7m_proc_fin) * - loc - location to jump to for soft reset */ .align 5 -ENTRY(cpu_v7m_reset) +SYM_TYPED_FUNC_START(cpu_v7m_reset) ret r0 -ENDPROC(cpu_v7m_reset) +SYM_FUNC_END(cpu_v7m_reset) /* * cpu_v7m_do_idle() @@ -42,36 +43,36 @@ ENDPROC(cpu_v7m_reset) * * IRQs are already disabled. */ -ENTRY(cpu_v7m_do_idle) +SYM_TYPED_FUNC_START(cpu_v7m_do_idle) wfi ret lr -ENDPROC(cpu_v7m_do_idle) +SYM_FUNC_END(cpu_v7m_do_idle) -ENTRY(cpu_v7m_dcache_clean_area) +SYM_TYPED_FUNC_START(cpu_v7m_dcache_clean_area) ret lr -ENDPROC(cpu_v7m_dcache_clean_area) +SYM_FUNC_END(cpu_v7m_dcache_clean_area) /* * There is no MMU, so here is nothing to do. */ -ENTRY(cpu_v7m_switch_mm) +SYM_TYPED_FUNC_START(cpu_v7m_switch_mm) ret lr -ENDPROC(cpu_v7m_switch_mm) +SYM_FUNC_END(cpu_v7m_switch_mm) .globl cpu_v7m_suspend_size .equ cpu_v7m_suspend_size, 0 #ifdef CONFIG_ARM_CPU_SUSPEND -ENTRY(cpu_v7m_do_suspend) +SYM_TYPED_FUNC_START(cpu_v7m_do_suspend) ret lr -ENDPROC(cpu_v7m_do_suspend) +SYM_FUNC_END(cpu_v7m_do_suspend) -ENTRY(cpu_v7m_do_resume) +SYM_TYPED_FUNC_START(cpu_v7m_do_resume) ret lr -ENDPROC(cpu_v7m_do_resume) +SYM_FUNC_END(cpu_v7m_do_resume) #endif -ENTRY(cpu_cm7_dcache_clean_area) +SYM_TYPED_FUNC_START(cpu_cm7_dcache_clean_area) dcache_line_size r2, r3 movw r3, #:lower16:BASEADDR_V7M_SCB + V7M_SCB_DCCMVAC movt r3, #:upper16:BASEADDR_V7M_SCB + V7M_SCB_DCCMVAC @@ -82,16 +83,16 @@ ENTRY(cpu_cm7_dcache_clean_area) bhi 1b dsb ret lr -ENDPROC(cpu_cm7_dcache_clean_area) +SYM_FUNC_END(cpu_cm7_dcache_clean_area) -ENTRY(cpu_cm7_proc_fin) +SYM_TYPED_FUNC_START(cpu_cm7_proc_fin) movw r2, #:lower16:(BASEADDR_V7M_SCB + V7M_SCB_CCR) movt r2, #:upper16:(BASEADDR_V7M_SCB + V7M_SCB_CCR) ldr r0, [r2] bic r0, r0, #(V7M_SCB_CCR_DC | V7M_SCB_CCR_IC) str r0, [r2] ret lr -ENDPROC(cpu_cm7_proc_fin) +SYM_FUNC_END(cpu_cm7_proc_fin) .section ".init.text", "ax" diff --git a/arch/arm/mm/proc-xsc3.S b/arch/arm/mm/proc-xsc3.S index 8a7b8adf7484..f4889911eca2 100644 --- a/arch/arm/mm/proc-xsc3.S +++ b/arch/arm/mm/proc-xsc3.S @@ -80,18 +80,20 @@ * * Nothing too exciting at the moment */ -ENTRY(cpu_xsc3_proc_init) +SYM_TYPED_FUNC_START(cpu_xsc3_proc_init) ret lr +SYM_FUNC_END(cpu_xsc3_proc_init) /* * cpu_xsc3_proc_fin() */ -ENTRY(cpu_xsc3_proc_fin) +SYM_TYPED_FUNC_START(cpu_xsc3_proc_fin) mrc p15, 0, r0, c1, c0, 0 @ ctrl register bic r0, r0, #0x1800 @ ...IZ........... bic r0, r0, #0x0006 @ .............CA. mcr p15, 0, r0, c1, c0, 0 @ disable caches ret lr +SYM_FUNC_END(cpu_xsc3_proc_fin) /* * cpu_xsc3_reset(loc) @@ -104,7 +106,7 @@ ENTRY(cpu_xsc3_proc_fin) */ .align 5 .pushsection .idmap.text, "ax" -ENTRY(cpu_xsc3_reset) +SYM_TYPED_FUNC_START(cpu_xsc3_reset) mov r1, #PSR_F_BIT|PSR_I_BIT|SVC_MODE msr cpsr_c, r1 @ reset CPSR mrc p15, 0, r1, c1, c0, 0 @ ctrl register @@ -118,7 +120,7 @@ ENTRY(cpu_xsc3_reset) @ already containing those two last instructions to survive. mcr p15, 0, ip, c8, c7, 0 @ invalidate I and D TLBs ret r0 -ENDPROC(cpu_xsc3_reset) +SYM_FUNC_END(cpu_xsc3_reset) .popsection /* @@ -133,10 +135,11 @@ ENDPROC(cpu_xsc3_reset) */ .align 5 -ENTRY(cpu_xsc3_do_idle) +SYM_TYPED_FUNC_START(cpu_xsc3_do_idle) mov r0, #1 mcr p14, 0, r0, c7, c0, 0 @ go to idle ret lr +SYM_FUNC_END(cpu_xsc3_do_idle) /* ================================= CACHE ================================ */ @@ -341,12 +344,13 @@ SYM_TYPED_FUNC_START(xsc3_dma_unmap_area) ret lr SYM_FUNC_END(xsc3_dma_unmap_area) -ENTRY(cpu_xsc3_dcache_clean_area) +SYM_TYPED_FUNC_START(cpu_xsc3_dcache_clean_area) 1: mcr p15, 0, r0, c7, c10, 1 @ clean L1 D line add r0, r0, #CACHELINESIZE subs r1, r1, #CACHELINESIZE bhi 1b ret lr +SYM_FUNC_END(cpu_xsc3_dcache_clean_area) /* =============================== PageTable ============================== */ @@ -358,7 +362,7 @@ ENTRY(cpu_xsc3_dcache_clean_area) * pgd: new page tables */ .align 5 -ENTRY(cpu_xsc3_switch_mm) +SYM_TYPED_FUNC_START(cpu_xsc3_switch_mm) clean_d_cache r1, r2 mcr p15, 0, ip, c7, c5, 0 @ invalidate L1 I cache and BTB mcr p15, 0, ip, c7, c10, 4 @ data write barrier @@ -367,6 +371,7 @@ ENTRY(cpu_xsc3_switch_mm) mcr p15, 0, r0, c2, c0, 0 @ load page table pointer mcr p15, 0, ip, c8, c7, 0 @ invalidate I and D TLBs cpwait_ret lr, ip +SYM_FUNC_END(cpu_xsc3_switch_mm) /* * cpu_xsc3_set_pte_ext(ptep, pte, ext) @@ -392,7 +397,7 @@ cpu_xsc3_mt_table: .long 0x00 @ unused .align 5 -ENTRY(cpu_xsc3_set_pte_ext) +SYM_TYPED_FUNC_START(cpu_xsc3_set_pte_ext) xscale_set_pte_ext_prologue tst r1, #L_PTE_SHARED @ shared? @@ -405,6 +410,7 @@ ENTRY(cpu_xsc3_set_pte_ext) xscale_set_pte_ext_epilogue ret lr +SYM_FUNC_END(cpu_xsc3_set_pte_ext) .ltorg .align @@ -412,7 +418,7 @@ ENTRY(cpu_xsc3_set_pte_ext) .globl cpu_xsc3_suspend_size .equ cpu_xsc3_suspend_size, 4 * 6 #ifdef CONFIG_ARM_CPU_SUSPEND -ENTRY(cpu_xsc3_do_suspend) +SYM_TYPED_FUNC_START(cpu_xsc3_do_suspend) stmfd sp!, {r4 - r9, lr} mrc p14, 0, r4, c6, c0, 0 @ clock configuration, for turbo mode mrc p15, 0, r5, c15, c1, 0 @ CP access reg @@ -423,9 +429,9 @@ ENTRY(cpu_xsc3_do_suspend) bic r4, r4, #2 @ clear frequency change bit stmia r0, {r4 - r9} @ store cp regs ldmia sp!, {r4 - r9, pc} -ENDPROC(cpu_xsc3_do_suspend) +SYM_FUNC_END(cpu_xsc3_do_suspend) -ENTRY(cpu_xsc3_do_resume) +SYM_TYPED_FUNC_START(cpu_xsc3_do_resume) ldmia r0, {r4 - r9} @ load cp regs mov ip, #0 mcr p15, 0, ip, c7, c7, 0 @ invalidate I & D caches, BTB @@ -441,7 +447,7 @@ ENTRY(cpu_xsc3_do_resume) mcr p15, 0, r8, c1, c0, 1 @ auxiliary control reg mov r0, r9 @ control register b cpu_resume_mmu -ENDPROC(cpu_xsc3_do_resume) +SYM_FUNC_END(cpu_xsc3_do_resume) #endif .type __xsc3_setup, #function diff --git a/arch/arm/mm/proc-xscale.S b/arch/arm/mm/proc-xscale.S index bbf1e94ba554..d8462df8020b 100644 --- a/arch/arm/mm/proc-xscale.S +++ b/arch/arm/mm/proc-xscale.S @@ -112,22 +112,24 @@ clean_addr: .word CLEAN_ADDR * * Nothing too exciting at the moment */ -ENTRY(cpu_xscale_proc_init) +SYM_TYPED_FUNC_START(cpu_xscale_proc_init) @ enable write buffer coalescing. Some bootloader disable it mrc p15, 0, r1, c1, c0, 1 bic r1, r1, #1 mcr p15, 0, r1, c1, c0, 1 ret lr +SYM_FUNC_END(cpu_xscale_proc_init) /* * cpu_xscale_proc_fin() */ -ENTRY(cpu_xscale_proc_fin) +SYM_TYPED_FUNC_START(cpu_xscale_proc_fin) mrc p15, 0, r0, c1, c0, 0 @ ctrl register bic r0, r0, #0x1800 @ ...IZ........... bic r0, r0, #0x0006 @ .............CA. mcr p15, 0, r0, c1, c0, 0 @ disable caches ret lr +SYM_FUNC_END(cpu_xscale_proc_fin) /* * cpu_xscale_reset(loc) @@ -142,7 +144,7 @@ ENTRY(cpu_xscale_proc_fin) */ .align 5 .pushsection .idmap.text, "ax" -ENTRY(cpu_xscale_reset) +SYM_TYPED_FUNC_START(cpu_xscale_reset) mov r1, #PSR_F_BIT|PSR_I_BIT|SVC_MODE msr cpsr_c, r1 @ reset CPSR mcr p15, 0, r1, c10, c4, 1 @ unlock I-TLB @@ -160,7 +162,7 @@ ENTRY(cpu_xscale_reset) @ already containing those two last instructions to survive. mcr p15, 0, ip, c8, c7, 0 @ invalidate I & D TLBs ret r0 -ENDPROC(cpu_xscale_reset) +SYM_FUNC_END(cpu_xscale_reset) .popsection /* @@ -175,10 +177,11 @@ ENDPROC(cpu_xscale_reset) */ .align 5 -ENTRY(cpu_xscale_do_idle) +SYM_TYPED_FUNC_START(cpu_xscale_do_idle) mov r0, #1 mcr p14, 0, r0, c7, c0, 0 @ Go to IDLE ret lr +SYM_FUNC_END(cpu_xscale_do_idle) /* ================================= CACHE ================================ */ @@ -428,12 +431,13 @@ SYM_TYPED_FUNC_START(xscale_dma_unmap_area) ret lr SYM_FUNC_END(xscale_dma_unmap_area) -ENTRY(cpu_xscale_dcache_clean_area) +SYM_TYPED_FUNC_START(cpu_xscale_dcache_clean_area) 1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry add r0, r0, #CACHELINESIZE subs r1, r1, #CACHELINESIZE bhi 1b ret lr +SYM_FUNC_END(cpu_xscale_dcache_clean_area) /* =============================== PageTable ============================== */ @@ -445,13 +449,14 @@ ENTRY(cpu_xscale_dcache_clean_area) * pgd: new page tables */ .align 5 -ENTRY(cpu_xscale_switch_mm) +SYM_TYPED_FUNC_START(cpu_xscale_switch_mm) clean_d_cache r1, r2 mcr p15, 0, ip, c7, c5, 0 @ Invalidate I cache & BTB mcr p15, 0, ip, c7, c10, 4 @ Drain Write (& Fill) Buffer mcr p15, 0, r0, c2, c0, 0 @ load page table pointer mcr p15, 0, ip, c8, c7, 0 @ invalidate I & D TLBs cpwait_ret lr, ip +SYM_FUNC_END(cpu_xscale_switch_mm) /* * cpu_xscale_set_pte_ext(ptep, pte, ext) @@ -479,7 +484,7 @@ cpu_xscale_mt_table: .long 0x00 @ unused .align 5 -ENTRY(cpu_xscale_set_pte_ext) +SYM_TYPED_FUNC_START(cpu_xscale_set_pte_ext) xscale_set_pte_ext_prologue @ @@ -497,6 +502,7 @@ ENTRY(cpu_xscale_set_pte_ext) xscale_set_pte_ext_epilogue ret lr +SYM_FUNC_END(cpu_xscale_set_pte_ext) .ltorg .align @@ -504,7 +510,7 @@ ENTRY(cpu_xscale_set_pte_ext) .globl cpu_xscale_suspend_size .equ cpu_xscale_suspend_size, 4 * 6 #ifdef CONFIG_ARM_CPU_SUSPEND -ENTRY(cpu_xscale_do_suspend) +SYM_TYPED_FUNC_START(cpu_xscale_do_suspend) stmfd sp!, {r4 - r9, lr} mrc p14, 0, r4, c6, c0, 0 @ clock configuration, for turbo mode mrc p15, 0, r5, c15, c1, 0 @ CP access reg @@ -515,9 +521,9 @@ ENTRY(cpu_xscale_do_suspend) bic r4, r4, #2 @ clear frequency change bit stmia r0, {r4 - r9} @ store cp regs ldmfd sp!, {r4 - r9, pc} -ENDPROC(cpu_xscale_do_suspend) +SYM_FUNC_END(cpu_xscale_do_suspend) -ENTRY(cpu_xscale_do_resume) +SYM_TYPED_FUNC_START(cpu_xscale_do_resume) ldmia r0, {r4 - r9} @ load cp regs mov ip, #0 mcr p15, 0, ip, c8, c7, 0 @ invalidate I & D TLBs @@ -530,7 +536,7 @@ ENTRY(cpu_xscale_do_resume) mcr p15, 0, r8, c1, c0, 1 @ auxiliary control reg mov r0, r9 @ control register b cpu_resume_mmu -ENDPROC(cpu_xscale_do_resume) +SYM_FUNC_END(cpu_xscale_do_resume) #endif .type __xscale_setup, #function -- cgit v1.2.3 From 393999fa96273bab8d6efb2f4724030916afd61b Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Tue, 23 Apr 2024 08:48:42 +0100 Subject: ARM: 9389/2: mm: Define prototypes for all per-processor calls Each CPU type ("proc") has assembly calls for initializing and setting up the MM context, idle and so forth. These calls have the C form of e.g.: void cpu_arm920_init(void); However this prototype is not really specified, instead it is generated by the glue code in and the prototype is implicit from the generic prototype defined in such as cpu_proc_init() in this case. (This is a bit similar to the "interface" or inheritance concept in other languages.) To be able to annotate these assembly calls for CFI, they all need to have a proper C prototype per CPU call. Define these in a new C file that is only compiled when we use CFI, and add __ADDRESSABLE() to each so the compiler knows that these will be addressed (they are not explicitly called in C, they are called by way of cpu_proc_init() etc). It is a bit of definitions, but we do not expect new ARM32 CPUs to appear very much so it should be pretty static. Tested-by: Kees Cook Reviewed-by: Sami Tolvanen Signed-off-by: Linus Walleij Signed-off-by: Russell King (Oracle) --- arch/arm/mm/Makefile | 1 + arch/arm/mm/proc.c | 500 +++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 501 insertions(+) create mode 100644 arch/arm/mm/proc.c (limited to 'arch/arm') diff --git a/arch/arm/mm/Makefile b/arch/arm/mm/Makefile index 17665381be96..f1f231f20ff9 100644 --- a/arch/arm/mm/Makefile +++ b/arch/arm/mm/Makefile @@ -90,6 +90,7 @@ obj-$(CONFIG_CPU_V6) += proc-v6.o obj-$(CONFIG_CPU_V6K) += proc-v6.o obj-$(CONFIG_CPU_V7) += proc-v7.o proc-v7-bugs.o obj-$(CONFIG_CPU_V7M) += proc-v7m.o +obj-$(CONFIG_CFI_CLANG) += proc.o obj-$(CONFIG_OUTER_CACHE) += l2c-common.o obj-$(CONFIG_CACHE_B15_RAC) += cache-b15-rac.o diff --git a/arch/arm/mm/proc.c b/arch/arm/mm/proc.c new file mode 100644 index 000000000000..bdbbf65d1b36 --- /dev/null +++ b/arch/arm/mm/proc.c @@ -0,0 +1,500 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * This file defines C prototypes for the low-level processor assembly functions + * and creates a reference for CFI. This needs to be done for every assembly + * processor ("proc") function that is called from C but does not have a + * corresponding C implementation. + * + * Processors are listed in the order they appear in the Makefile. + * + * Functions are listed if and only if they see use on the target CPU, and in + * the order they are defined in struct processor. + */ +#include + +#ifdef CONFIG_CPU_ARM7TDMI +void cpu_arm7tdmi_proc_init(void); +__ADDRESSABLE(cpu_arm7tdmi_proc_init); +void cpu_arm7tdmi_proc_fin(void); +__ADDRESSABLE(cpu_arm7tdmi_proc_fin); +void cpu_arm7tdmi_reset(void); +__ADDRESSABLE(cpu_arm7tdmi_reset); +int cpu_arm7tdmi_do_idle(void); +__ADDRESSABLE(cpu_arm7tdmi_do_idle); +void cpu_arm7tdmi_dcache_clean_area(void *addr, int size); +__ADDRESSABLE(cpu_arm7tdmi_dcache_clean_area); +void cpu_arm7tdmi_switch_mm(phys_addr_t pgd_phys, struct mm_struct *mm); +__ADDRESSABLE(cpu_arm7tdmi_switch_mm); +#endif + +#ifdef CONFIG_CPU_ARM720T +void cpu_arm720_proc_init(void); +__ADDRESSABLE(cpu_arm720_proc_init); +void cpu_arm720_proc_fin(void); +__ADDRESSABLE(cpu_arm720_proc_fin); +void cpu_arm720_reset(void); +__ADDRESSABLE(cpu_arm720_reset); +int cpu_arm720_do_idle(void); +__ADDRESSABLE(cpu_arm720_do_idle); +void cpu_arm720_dcache_clean_area(void *addr, int size); +__ADDRESSABLE(cpu_arm720_dcache_clean_area); +void cpu_arm720_switch_mm(phys_addr_t pgd_phys, struct mm_struct *mm); +__ADDRESSABLE(cpu_arm720_switch_mm); +void cpu_arm720_set_pte_ext(pte_t *ptep, pte_t pte, unsigned int ext); +__ADDRESSABLE(cpu_arm720_set_pte_ext); +#endif + +#ifdef CONFIG_CPU_ARM740T +void cpu_arm740_proc_init(void); +__ADDRESSABLE(cpu_arm740_proc_init); +void cpu_arm740_proc_fin(void); +__ADDRESSABLE(cpu_arm740_proc_fin); +void cpu_arm740_reset(void); +__ADDRESSABLE(cpu_arm740_reset); +int cpu_arm740_do_idle(void); +__ADDRESSABLE(cpu_arm740_do_idle); +void cpu_arm740_dcache_clean_area(void *addr, int size); +__ADDRESSABLE(cpu_arm740_dcache_clean_area); +void cpu_arm740_switch_mm(phys_addr_t pgd_phys, struct mm_struct *mm); +__ADDRESSABLE(cpu_arm740_switch_mm); +#endif + +#ifdef CONFIG_CPU_ARM9TDMI +void cpu_arm9tdmi_proc_init(void); +__ADDRESSABLE(cpu_arm9tdmi_proc_init); +void cpu_arm9tdmi_proc_fin(void); +__ADDRESSABLE(cpu_arm9tdmi_proc_fin); +void cpu_arm9tdmi_reset(void); +__ADDRESSABLE(cpu_arm9tdmi_reset); +int cpu_arm9tdmi_do_idle(void); +__ADDRESSABLE(cpu_arm9tdmi_do_idle); +void cpu_arm9tdmi_dcache_clean_area(void *addr, int size); +__ADDRESSABLE(cpu_arm9tdmi_dcache_clean_area); +void cpu_arm9tdmi_switch_mm(phys_addr_t pgd_phys, struct mm_struct *mm); +__ADDRESSABLE(cpu_arm9tdmi_switch_mm); +#endif + +#ifdef CONFIG_CPU_ARM920T +void cpu_arm920_proc_init(void); +__ADDRESSABLE(cpu_arm920_proc_init); +void cpu_arm920_proc_fin(void); +__ADDRESSABLE(cpu_arm920_proc_fin); +void cpu_arm920_reset(void); +__ADDRESSABLE(cpu_arm920_reset); +int cpu_arm920_do_idle(void); +__ADDRESSABLE(cpu_arm920_do_idle); +void cpu_arm920_dcache_clean_area(void *addr, int size); +__ADDRESSABLE(cpu_arm920_dcache_clean_area); +void cpu_arm920_switch_mm(phys_addr_t pgd_phys, struct mm_struct *mm); +__ADDRESSABLE(cpu_arm920_switch_mm); +void cpu_arm920_set_pte_ext(pte_t *ptep, pte_t pte, unsigned int ext); +__ADDRESSABLE(cpu_arm920_set_pte_ext); +#ifdef CONFIG_ARM_CPU_SUSPEND +void cpu_arm920_do_suspend(void *); +__ADDRESSABLE(cpu_arm920_do_suspend); +void cpu_arm920_do_resume(void *); +__ADDRESSABLE(cpu_arm920_do_resume); +#endif /* CONFIG_ARM_CPU_SUSPEND */ +#endif /* CONFIG_CPU_ARM920T */ + +#ifdef CONFIG_CPU_ARM922T +void cpu_arm922_proc_init(void); +__ADDRESSABLE(cpu_arm922_proc_init); +void cpu_arm922_proc_fin(void); +__ADDRESSABLE(cpu_arm922_proc_fin); +void cpu_arm922_reset(void); +__ADDRESSABLE(cpu_arm922_reset); +int cpu_arm922_do_idle(void); +__ADDRESSABLE(cpu_arm922_do_idle); +void cpu_arm922_dcache_clean_area(void *addr, int size); +__ADDRESSABLE(cpu_arm922_dcache_clean_area); +void cpu_arm922_switch_mm(phys_addr_t pgd_phys, struct mm_struct *mm); +__ADDRESSABLE(cpu_arm922_switch_mm); +void cpu_arm922_set_pte_ext(pte_t *ptep, pte_t pte, unsigned int ext); +__ADDRESSABLE(cpu_arm922_set_pte_ext); +#endif + +#ifdef CONFIG_CPU_ARM925T +void cpu_arm925_proc_init(void); +__ADDRESSABLE(cpu_arm925_proc_init); +void cpu_arm925_proc_fin(void); +__ADDRESSABLE(cpu_arm925_proc_fin); +void cpu_arm925_reset(void); +__ADDRESSABLE(cpu_arm925_reset); +int cpu_arm925_do_idle(void); +__ADDRESSABLE(cpu_arm925_do_idle); +void cpu_arm925_dcache_clean_area(void *addr, int size); +__ADDRESSABLE(cpu_arm925_dcache_clean_area); +void cpu_arm925_switch_mm(phys_addr_t pgd_phys, struct mm_struct *mm); +__ADDRESSABLE(cpu_arm925_switch_mm); +void cpu_arm925_set_pte_ext(pte_t *ptep, pte_t pte, unsigned int ext); +__ADDRESSABLE(cpu_arm925_set_pte_ext); +#endif + +#ifdef CONFIG_CPU_ARM926T +void cpu_arm926_proc_init(void); +__ADDRESSABLE(cpu_arm926_proc_init); +void cpu_arm926_proc_fin(void); +__ADDRESSABLE(cpu_arm926_proc_fin); +void cpu_arm926_reset(unsigned long addr, bool hvc); +__ADDRESSABLE(cpu_arm926_reset); +int cpu_arm926_do_idle(void); +__ADDRESSABLE(cpu_arm926_do_idle); +void cpu_arm926_dcache_clean_area(void *addr, int size); +__ADDRESSABLE(cpu_arm926_dcache_clean_area); +void cpu_arm926_switch_mm(phys_addr_t pgd_phys, struct mm_struct *mm); +__ADDRESSABLE(cpu_arm926_switch_mm); +void cpu_arm926_set_pte_ext(pte_t *ptep, pte_t pte, unsigned int ext); +__ADDRESSABLE(cpu_arm926_set_pte_ext); +#ifdef CONFIG_ARM_CPU_SUSPEND +void cpu_arm926_do_suspend(void *); +__ADDRESSABLE(cpu_arm926_do_suspend); +void cpu_arm926_do_resume(void *); +__ADDRESSABLE(cpu_arm926_do_resume); +#endif /* CONFIG_ARM_CPU_SUSPEND */ +#endif /* CONFIG_CPU_ARM926T */ + +#ifdef CONFIG_CPU_ARM940T +void cpu_arm940_proc_init(void); +__ADDRESSABLE(cpu_arm940_proc_init); +void cpu_arm940_proc_fin(void); +__ADDRESSABLE(cpu_arm940_proc_fin); +void cpu_arm940_reset(void); +__ADDRESSABLE(cpu_arm940_reset); +int cpu_arm940_do_idle(void); +__ADDRESSABLE(cpu_arm940_do_idle); +void cpu_arm940_dcache_clean_area(void *addr, int size); +__ADDRESSABLE(cpu_arm940_dcache_clean_area); +void cpu_arm940_switch_mm(phys_addr_t pgd_phys, struct mm_struct *mm); +__ADDRESSABLE(cpu_arm940_switch_mm); +#endif + +#ifdef CONFIG_CPU_ARM946E +void cpu_arm946_proc_init(void); +__ADDRESSABLE(cpu_arm946_proc_init); +void cpu_arm946_proc_fin(void); +__ADDRESSABLE(cpu_arm946_proc_fin); +void cpu_arm946_reset(void); +__ADDRESSABLE(cpu_arm946_reset); +int cpu_arm946_do_idle(void); +__ADDRESSABLE(cpu_arm946_do_idle); +void cpu_arm946_dcache_clean_area(void *addr, int size); +__ADDRESSABLE(cpu_arm946_dcache_clean_area); +void cpu_arm946_switch_mm(phys_addr_t pgd_phys, struct mm_struct *mm); +__ADDRESSABLE(cpu_arm946_switch_mm); +#endif + +#ifdef CONFIG_CPU_FA526 +void cpu_fa526_proc_init(void); +__ADDRESSABLE(cpu_fa526_proc_init); +void cpu_fa526_proc_fin(void); +__ADDRESSABLE(cpu_fa526_proc_fin); +void cpu_fa526_reset(unsigned long addr, bool hvc); +__ADDRESSABLE(cpu_fa526_reset); +int cpu_fa526_do_idle(void); +__ADDRESSABLE(cpu_fa526_do_idle); +void cpu_fa526_dcache_clean_area(void *addr, int size); +__ADDRESSABLE(cpu_fa526_dcache_clean_area); +void cpu_fa526_switch_mm(phys_addr_t pgd_phys, struct mm_struct *mm); +__ADDRESSABLE(cpu_fa526_switch_mm); +void cpu_fa526_set_pte_ext(pte_t *ptep, pte_t pte, unsigned int ext); +__ADDRESSABLE(cpu_fa526_set_pte_ext); +#endif + +#ifdef CONFIG_CPU_ARM1020 +void cpu_arm1020_proc_init(void); +__ADDRESSABLE(cpu_arm1020_proc_init); +void cpu_arm1020_proc_fin(void); +__ADDRESSABLE(cpu_arm1020_proc_fin); +void cpu_arm1020_reset(unsigned long addr, bool hvc); +__ADDRESSABLE(cpu_arm1020_reset); +int cpu_arm1020_do_idle(void); +__ADDRESSABLE(cpu_arm1020_do_idle); +void cpu_arm1020_dcache_clean_area(void *addr, int size); +__ADDRESSABLE(cpu_arm1020_dcache_clean_area); +void cpu_arm1020_switch_mm(phys_addr_t pgd_phys, struct mm_struct *mm); +__ADDRESSABLE(cpu_arm1020_switch_mm); +void cpu_arm1020_set_pte_ext(pte_t *ptep, pte_t pte, unsigned int ext); +__ADDRESSABLE(cpu_arm1020_set_pte_ext); +#endif + +#ifdef CONFIG_CPU_ARM1020E +void cpu_arm1020e_proc_init(void); +__ADDRESSABLE(cpu_arm1020e_proc_init); +void cpu_arm1020e_proc_fin(void); +__ADDRESSABLE(cpu_arm1020e_proc_fin); +void cpu_arm1020e_reset(unsigned long addr, bool hvc); +__ADDRESSABLE(cpu_arm1020e_reset); +int cpu_arm1020e_do_idle(void); +__ADDRESSABLE(cpu_arm1020e_do_idle); +void cpu_arm1020e_dcache_clean_area(void *addr, int size); +__ADDRESSABLE(cpu_arm1020e_dcache_clean_area); +void cpu_arm1020e_switch_mm(phys_addr_t pgd_phys, struct mm_struct *mm); +__ADDRESSABLE(cpu_arm1020e_switch_mm); +void cpu_arm1020e_set_pte_ext(pte_t *ptep, pte_t pte, unsigned int ext); +__ADDRESSABLE(cpu_arm1020e_set_pte_ext); +#endif + +#ifdef CONFIG_CPU_ARM1022 +void cpu_arm1022_proc_init(void); +__ADDRESSABLE(cpu_arm1022_proc_init); +void cpu_arm1022_proc_fin(void); +__ADDRESSABLE(cpu_arm1022_proc_fin); +void cpu_arm1022_reset(unsigned long addr, bool hvc); +__ADDRESSABLE(cpu_arm1022_reset); +int cpu_arm1022_do_idle(void); +__ADDRESSABLE(cpu_arm1022_do_idle); +void cpu_arm1022_dcache_clean_area(void *addr, int size); +__ADDRESSABLE(cpu_arm1022_dcache_clean_area); +void cpu_arm1022_switch_mm(phys_addr_t pgd_phys, struct mm_struct *mm); +__ADDRESSABLE(cpu_arm1022_switch_mm); +void cpu_arm1022_set_pte_ext(pte_t *ptep, pte_t pte, unsigned int ext); +__ADDRESSABLE(cpu_arm1022_set_pte_ext); +#endif + +#ifdef CONFIG_CPU_ARM1026 +void cpu_arm1026_proc_init(void); +__ADDRESSABLE(cpu_arm1026_proc_init); +void cpu_arm1026_proc_fin(void); +__ADDRESSABLE(cpu_arm1026_proc_fin); +void cpu_arm1026_reset(unsigned long addr, bool hvc); +__ADDRESSABLE(cpu_arm1026_reset); +int cpu_arm1026_do_idle(void); +__ADDRESSABLE(cpu_arm1026_do_idle); +void cpu_arm1026_dcache_clean_area(void *addr, int size); +__ADDRESSABLE(cpu_arm1026_dcache_clean_area); +void cpu_arm1026_switch_mm(phys_addr_t pgd_phys, struct mm_struct *mm); +__ADDRESSABLE(cpu_arm1026_switch_mm); +void cpu_arm1026_set_pte_ext(pte_t *ptep, pte_t pte, unsigned int ext); +__ADDRESSABLE(cpu_arm1026_set_pte_ext); +#endif + +#ifdef CONFIG_CPU_SA110 +void cpu_sa110_proc_init(void); +__ADDRESSABLE(cpu_sa110_proc_init); +void cpu_sa110_proc_fin(void); +__ADDRESSABLE(cpu_sa110_proc_fin); +void cpu_sa110_reset(unsigned long addr, bool hvc); +__ADDRESSABLE(cpu_sa110_reset); +int cpu_sa110_do_idle(void); +__ADDRESSABLE(cpu_sa110_do_idle); +void cpu_sa110_dcache_clean_area(void *addr, int size); +__ADDRESSABLE(cpu_sa110_dcache_clean_area); +void cpu_sa110_switch_mm(phys_addr_t pgd_phys, struct mm_struct *mm); +__ADDRESSABLE(cpu_sa110_switch_mm); +void cpu_sa110_set_pte_ext(pte_t *ptep, pte_t pte, unsigned int ext); +__ADDRESSABLE(cpu_sa110_set_pte_ext); +#endif + +#ifdef CONFIG_CPU_SA1100 +void cpu_sa1100_proc_init(void); +__ADDRESSABLE(cpu_sa1100_proc_init); +void cpu_sa1100_proc_fin(void); +__ADDRESSABLE(cpu_sa1100_proc_fin); +void cpu_sa1100_reset(unsigned long addr, bool hvc); +__ADDRESSABLE(cpu_sa1100_reset); +int cpu_sa1100_do_idle(void); +__ADDRESSABLE(cpu_sa1100_do_idle); +void cpu_sa1100_dcache_clean_area(void *addr, int size); +__ADDRESSABLE(cpu_sa1100_dcache_clean_area); +void cpu_sa1100_switch_mm(phys_addr_t pgd_phys, struct mm_struct *mm); +__ADDRESSABLE(cpu_sa1100_switch_mm); +void cpu_sa1100_set_pte_ext(pte_t *ptep, pte_t pte, unsigned int ext); +__ADDRESSABLE(cpu_sa1100_set_pte_ext); +#ifdef CONFIG_ARM_CPU_SUSPEND +void cpu_sa1100_do_suspend(void *); +__ADDRESSABLE(cpu_sa1100_do_suspend); +void cpu_sa1100_do_resume(void *); +__ADDRESSABLE(cpu_sa1100_do_resume); +#endif /* CONFIG_ARM_CPU_SUSPEND */ +#endif /* CONFIG_CPU_SA1100 */ + +#ifdef CONFIG_CPU_XSCALE +void cpu_xscale_proc_init(void); +__ADDRESSABLE(cpu_xscale_proc_init); +void cpu_xscale_proc_fin(void); +__ADDRESSABLE(cpu_xscale_proc_fin); +void cpu_xscale_reset(unsigned long addr, bool hvc); +__ADDRESSABLE(cpu_xscale_reset); +int cpu_xscale_do_idle(void); +__ADDRESSABLE(cpu_xscale_do_idle); +void cpu_xscale_dcache_clean_area(void *addr, int size); +__ADDRESSABLE(cpu_xscale_dcache_clean_area); +void cpu_xscale_switch_mm(phys_addr_t pgd_phys, struct mm_struct *mm); +__ADDRESSABLE(cpu_xscale_switch_mm); +void cpu_xscale_set_pte_ext(pte_t *ptep, pte_t pte, unsigned int ext); +__ADDRESSABLE(cpu_xscale_set_pte_ext); +#ifdef CONFIG_ARM_CPU_SUSPEND +void cpu_xscale_do_suspend(void *); +__ADDRESSABLE(cpu_xscale_do_suspend); +void cpu_xscale_do_resume(void *); +__ADDRESSABLE(cpu_xscale_do_resume); +#endif /* CONFIG_ARM_CPU_SUSPEND */ +#endif /* CONFIG_CPU_XSCALE */ + +#ifdef CONFIG_CPU_XSC3 +void cpu_xsc3_proc_init(void); +__ADDRESSABLE(cpu_xsc3_proc_init); +void cpu_xsc3_proc_fin(void); +__ADDRESSABLE(cpu_xsc3_proc_fin); +void cpu_xsc3_reset(unsigned long addr, bool hvc); +__ADDRESSABLE(cpu_xsc3_reset); +int cpu_xsc3_do_idle(void); +__ADDRESSABLE(cpu_xsc3_do_idle); +void cpu_xsc3_dcache_clean_area(void *addr, int size); +__ADDRESSABLE(cpu_xsc3_dcache_clean_area); +void cpu_xsc3_switch_mm(phys_addr_t pgd_phys, struct mm_struct *mm); +__ADDRESSABLE(cpu_xsc3_switch_mm); +void cpu_xsc3_set_pte_ext(pte_t *ptep, pte_t pte, unsigned int ext); +__ADDRESSABLE(cpu_xsc3_set_pte_ext); +#ifdef CONFIG_ARM_CPU_SUSPEND +void cpu_xsc3_do_suspend(void *); +__ADDRESSABLE(cpu_xsc3_do_suspend); +void cpu_xsc3_do_resume(void *); +__ADDRESSABLE(cpu_xsc3_do_resume); +#endif /* CONFIG_ARM_CPU_SUSPEND */ +#endif /* CONFIG_CPU_XSC3 */ + +#ifdef CONFIG_CPU_MOHAWK +void cpu_mohawk_proc_init(void); +__ADDRESSABLE(cpu_mohawk_proc_init); +void cpu_mohawk_proc_fin(void); +__ADDRESSABLE(cpu_mohawk_proc_fin); +void cpu_mohawk_reset(unsigned long addr, bool hvc); +__ADDRESSABLE(cpu_mohawk_reset); +int cpu_mohawk_do_idle(void); +__ADDRESSABLE(cpu_mohawk_do_idle); +void cpu_mohawk_dcache_clean_area(void *addr, int size); +__ADDRESSABLE(cpu_mohawk_dcache_clean_area); +void cpu_mohawk_switch_mm(phys_addr_t pgd_phys, struct mm_struct *mm); +__ADDRESSABLE(cpu_mohawk_switch_mm); +void cpu_mohawk_set_pte_ext(pte_t *ptep, pte_t pte, unsigned int ext); +__ADDRESSABLE(cpu_mohawk_set_pte_ext); +#ifdef CONFIG_ARM_CPU_SUSPEND +void cpu_mohawk_do_suspend(void *); +__ADDRESSABLE(cpu_mohawk_do_suspend); +void cpu_mohawk_do_resume(void *); +__ADDRESSABLE(cpu_mohawk_do_resume); +#endif /* CONFIG_ARM_CPU_SUSPEND */ +#endif /* CONFIG_CPU_MOHAWK */ + +#ifdef CONFIG_CPU_FEROCEON +void cpu_feroceon_proc_init(void); +__ADDRESSABLE(cpu_feroceon_proc_init); +void cpu_feroceon_proc_fin(void); +__ADDRESSABLE(cpu_feroceon_proc_fin); +void cpu_feroceon_reset(unsigned long addr, bool hvc); +__ADDRESSABLE(cpu_feroceon_reset); +int cpu_feroceon_do_idle(void); +__ADDRESSABLE(cpu_feroceon_do_idle); +void cpu_feroceon_dcache_clean_area(void *addr, int size); +__ADDRESSABLE(cpu_feroceon_dcache_clean_area); +void cpu_feroceon_switch_mm(phys_addr_t pgd_phys, struct mm_struct *mm); +__ADDRESSABLE(cpu_feroceon_switch_mm); +void cpu_feroceon_set_pte_ext(pte_t *ptep, pte_t pte, unsigned int ext); +__ADDRESSABLE(cpu_feroceon_set_pte_ext); +#ifdef CONFIG_ARM_CPU_SUSPEND +void cpu_feroceon_do_suspend(void *); +__ADDRESSABLE(cpu_feroceon_do_suspend); +void cpu_feroceon_do_resume(void *); +__ADDRESSABLE(cpu_feroceon_do_resume); +#endif /* CONFIG_ARM_CPU_SUSPEND */ +#endif /* CONFIG_CPU_FEROCEON */ + +#if defined(CONFIG_CPU_V6) || defined(CONFIG_CPU_V6K) +void cpu_v6_proc_init(void); +__ADDRESSABLE(cpu_v6_proc_init); +void cpu_v6_proc_fin(void); +__ADDRESSABLE(cpu_v6_proc_fin); +void cpu_v6_reset(unsigned long addr, bool hvc); +__ADDRESSABLE(cpu_v6_reset); +int cpu_v6_do_idle(void); +__ADDRESSABLE(cpu_v6_do_idle); +void cpu_v6_dcache_clean_area(void *addr, int size); +__ADDRESSABLE(cpu_v6_dcache_clean_area); +void cpu_v6_switch_mm(phys_addr_t pgd_phys, struct mm_struct *mm); +__ADDRESSABLE(cpu_v6_switch_mm); +void cpu_v6_set_pte_ext(pte_t *ptep, pte_t pte, unsigned int ext); +__ADDRESSABLE(cpu_v6_set_pte_ext); +#ifdef CONFIG_ARM_CPU_SUSPEND +void cpu_v6_do_suspend(void *); +__ADDRESSABLE(cpu_v6_do_suspend); +void cpu_v6_do_resume(void *); +__ADDRESSABLE(cpu_v6_do_resume); +#endif /* CONFIG_ARM_CPU_SUSPEND */ +#endif /* CPU_V6 */ + +#ifdef CONFIG_CPU_V7 +void cpu_v7_proc_init(void); +__ADDRESSABLE(cpu_v7_proc_init); +void cpu_v7_proc_fin(void); +__ADDRESSABLE(cpu_v7_proc_fin); +void cpu_v7_reset(void); +__ADDRESSABLE(cpu_v7_reset); +int cpu_v7_do_idle(void); +__ADDRESSABLE(cpu_v7_do_idle); +#ifdef CONFIG_PJ4B_ERRATA_4742 +int cpu_pj4b_do_idle(void); +__ADDRESSABLE(cpu_pj4b_do_idle); +#endif +void cpu_v7_dcache_clean_area(void *addr, int size); +__ADDRESSABLE(cpu_v7_dcache_clean_area); +void cpu_v7_switch_mm(phys_addr_t pgd_phys, struct mm_struct *mm); +/* Special switch_mm() callbacks to work around bugs in v7 */ +__ADDRESSABLE(cpu_v7_switch_mm); +void cpu_v7_iciallu_switch_mm(phys_addr_t pgd_phys, struct mm_struct *mm); +__ADDRESSABLE(cpu_v7_iciallu_switch_mm); +void cpu_v7_bpiall_switch_mm(phys_addr_t pgd_phys, struct mm_struct *mm); +__ADDRESSABLE(cpu_v7_bpiall_switch_mm); +#ifdef CONFIG_ARM_LPAE +void cpu_v7_set_pte_ext(pte_t *ptep, pte_t pte); +#else +void cpu_v7_set_pte_ext(pte_t *ptep, pte_t pte, unsigned int ext); +#endif +__ADDRESSABLE(cpu_v7_set_pte_ext); +#ifdef CONFIG_ARM_CPU_SUSPEND +void cpu_v7_do_suspend(void *); +__ADDRESSABLE(cpu_v7_do_suspend); +void cpu_v7_do_resume(void *); +__ADDRESSABLE(cpu_v7_do_resume); +/* Special versions of suspend and resume for the CA9MP cores */ +void cpu_ca9mp_do_suspend(void *); +__ADDRESSABLE(cpu_ca9mp_do_suspend); +void cpu_ca9mp_do_resume(void *); +__ADDRESSABLE(cpu_ca9mp_do_resume); +/* Special versions of suspend and resume for the Marvell PJ4B cores */ +#ifdef CONFIG_CPU_PJ4B +void cpu_pj4b_do_suspend(void *); +__ADDRESSABLE(cpu_pj4b_do_suspend); +void cpu_pj4b_do_resume(void *); +__ADDRESSABLE(cpu_pj4b_do_resume); +#endif /* CONFIG_CPU_PJ4B */ +#endif /* CONFIG_ARM_CPU_SUSPEND */ +#endif /* CONFIG_CPU_V7 */ + +#ifdef CONFIG_CPU_V7M +void cpu_v7m_proc_init(void); +__ADDRESSABLE(cpu_v7m_proc_init); +void cpu_v7m_proc_fin(void); +__ADDRESSABLE(cpu_v7m_proc_fin); +void cpu_v7m_reset(unsigned long addr, bool hvc); +__ADDRESSABLE(cpu_v7m_reset); +int cpu_v7m_do_idle(void); +__ADDRESSABLE(cpu_v7m_do_idle); +void cpu_v7m_dcache_clean_area(void *addr, int size); +__ADDRESSABLE(cpu_v7m_dcache_clean_area); +void cpu_v7m_switch_mm(phys_addr_t pgd_phys, struct mm_struct *mm); +__ADDRESSABLE(cpu_v7m_switch_mm); +void cpu_v7m_set_pte_ext(pte_t *ptep, pte_t pte, unsigned int ext); +__ADDRESSABLE(cpu_v7m_set_pte_ext); +#ifdef CONFIG_ARM_CPU_SUSPEND +void cpu_v7m_do_suspend(void *); +__ADDRESSABLE(cpu_v7m_do_suspend); +void cpu_v7m_do_resume(void *); +__ADDRESSABLE(cpu_v7m_do_resume); +#endif /* CONFIG_ARM_CPU_SUSPEND */ +void cpu_cm7_proc_fin(void); +__ADDRESSABLE(cpu_cm7_proc_fin); +void cpu_cm7_dcache_clean_area(void *addr, int size); +__ADDRESSABLE(cpu_cm7_dcache_clean_area); +#endif /* CONFIG_CPU_V7M */ -- cgit v1.2.3 From 7339fb11aea8387d1ceb260323a2c87faa48fdcd Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Tue, 23 Apr 2024 08:50:38 +0100 Subject: ARM: 9390/2: lib: Annotate loop delay instructions for CFI When we annotate the loop delay code with SYM_TYPED_FUNC_START() a function prototype signature will be emitted into the object file above each site called from C, and the delay loop code is using "fallthroughs" from the different assembly callbacks. This will not work as the execution flow will run into the prototype signatures. Rewrite the code to use explicit branches to the other code segments and annotate the code using SYM_TYPED_FUNC_START(). Tested on the ARM Versatile which uses the calibrated loop delay. Tested-by: Kees Cook Reviewed-by: Sami Tolvanen Signed-off-by: Linus Walleij Signed-off-by: Russell King (Oracle) --- arch/arm/lib/delay-loop.S | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/lib/delay-loop.S b/arch/arm/lib/delay-loop.S index 3ac05177d097..33b08ca1c242 100644 --- a/arch/arm/lib/delay-loop.S +++ b/arch/arm/lib/delay-loop.S @@ -5,6 +5,7 @@ * Copyright (C) 1995, 1996 Russell King */ #include +#include #include #include @@ -24,21 +25,26 @@ * HZ <= 1000 */ -ENTRY(__loop_udelay) +SYM_TYPED_FUNC_START(__loop_udelay) ldr r2, .LC1 mul r0, r2, r0 @ r0 = delay_us * UDELAY_MULT -ENTRY(__loop_const_udelay) @ 0 <= r0 <= 0xfffffaf0 + b __loop_const_udelay +SYM_FUNC_END(__loop_udelay) + +SYM_TYPED_FUNC_START(__loop_const_udelay) @ 0 <= r0 <= 0xfffffaf0 ldr r2, .LC0 ldr r2, [r2] umull r1, r0, r2, r0 @ r0-r1 = r0 * loops_per_jiffy adds r1, r1, #0xffffffff @ rounding up ... adcs r0, r0, r0 @ and right shift by 31 reteq lr + b __loop_delay +SYM_FUNC_END(__loop_const_udelay) .align 3 @ Delay routine -ENTRY(__loop_delay) +SYM_TYPED_FUNC_START(__loop_delay) subs r0, r0, #1 #if 0 retls lr @@ -58,6 +64,4 @@ ENTRY(__loop_delay) #endif bhi __loop_delay ret lr -ENDPROC(__loop_udelay) -ENDPROC(__loop_const_udelay) -ENDPROC(__loop_delay) +SYM_FUNC_END(__loop_delay) -- cgit v1.2.3 From c3f89986fde7bb9ccc86a901bf28e1f7d69fc3b3 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Tue, 23 Apr 2024 08:53:09 +0100 Subject: ARM: 9391/2: hw_breakpoint: Handle CFI breakpoints This registers a breakpoint handler for the new breakpoint type (0x03) inserted by LLVM CLANG for CFI breakpoints. If we are in permissive mode, just print a backtrace and continue. Example with CONFIG_CFI_PERMISSIVE enabled: > echo CFI_FORWARD_PROTO > /sys/kernel/debug/provoke-crash/DIRECT lkdtm: Performing direct entry CFI_FORWARD_PROTO lkdtm: Calling matched prototype ... lkdtm: Calling mismatched prototype ... CFI failure at lkdtm_indirect_call+0x40/0x4c (target: 0x0; expected type: 0x00000000) WARNING: CPU: 1 PID: 112 at lkdtm_indirect_call+0x40/0x4c CPU: 1 PID: 112 Comm: sh Not tainted 6.8.0-rc1+ #150 Hardware name: ARM-Versatile Express (...) lkdtm: FAIL: survived mismatched prototype function call! lkdtm: Unexpected! This kernel (6.8.0-rc1+ armv7l) was built with CONFIG_CFI_CLANG=y As you can see the LKDTM test fails, but I expect that this would be expected behaviour in the permissive mode. We are currently not implementing target and type for the CFI breakpoint as this requires additional operand bundling compiler extensions. CPUs without breakpoint support cannot handle breakpoints naturally, in these cases the permissive mode will not work, CFI will fall over on an undefined instruction: Internal error: Oops - undefined instruction: 0 [#1] PREEMPT ARM CPU: 0 PID: 186 Comm: ash Tainted: G W 6.9.0-rc1+ #7 Hardware name: Gemini (Device Tree) PC is at lkdtm_indirect_call+0x38/0x4c LR is at lkdtm_CFI_FORWARD_PROTO+0x30/0x6c This is reasonable I think: it's the best CFI can do to ascertain the the control flow is not broken on these CPUs. Reviewed-by: Kees Cook Tested-by: Kees Cook Reviewed-by: Sami Tolvanen Signed-off-by: Linus Walleij Signed-off-by: Russell King (Oracle) --- arch/arm/include/asm/hw_breakpoint.h | 1 + arch/arm/kernel/hw_breakpoint.c | 35 +++++++++++++++++++++++++++++++++++ 2 files changed, 36 insertions(+) (limited to 'arch/arm') diff --git a/arch/arm/include/asm/hw_breakpoint.h b/arch/arm/include/asm/hw_breakpoint.h index 62358d3ca0a8..e7f9961c53b2 100644 --- a/arch/arm/include/asm/hw_breakpoint.h +++ b/arch/arm/include/asm/hw_breakpoint.h @@ -84,6 +84,7 @@ static inline void decode_ctrl_reg(u32 reg, #define ARM_DSCR_MOE(x) ((x >> 2) & 0xf) #define ARM_ENTRY_BREAKPOINT 0x1 #define ARM_ENTRY_ASYNC_WATCHPOINT 0x2 +#define ARM_ENTRY_CFI_BREAKPOINT 0x3 #define ARM_ENTRY_SYNC_WATCHPOINT 0xa /* DSCR monitor/halting bits. */ diff --git a/arch/arm/kernel/hw_breakpoint.c b/arch/arm/kernel/hw_breakpoint.c index dc0fb7a81371..93f9034e4e72 100644 --- a/arch/arm/kernel/hw_breakpoint.c +++ b/arch/arm/kernel/hw_breakpoint.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include @@ -903,6 +904,37 @@ unlock: watchpoint_single_step_handler(addr); } +#ifdef CONFIG_CFI_CLANG +static void hw_breakpoint_cfi_handler(struct pt_regs *regs) +{ + /* + * TODO: implementing target and type to pass to CFI using the more + * elaborate report_cfi_failure() requires compiler work. To be able + * to properly extract target information the compiler needs to + * emit a stable instructions sequence for the CFI checks so we can + * decode the instructions preceding the trap and figure out which + * registers were used. + */ + + switch (report_cfi_failure_noaddr(regs, instruction_pointer(regs))) { + case BUG_TRAP_TYPE_BUG: + die("Oops - CFI", regs, 0); + break; + case BUG_TRAP_TYPE_WARN: + /* Skip the breaking instruction */ + instruction_pointer(regs) += 4; + break; + default: + die("Unknown CFI error", regs, 0); + break; + } +} +#else +static void hw_breakpoint_cfi_handler(struct pt_regs *regs) +{ +} +#endif + /* * Called from either the Data Abort Handler [watchpoint] or the * Prefetch Abort Handler [breakpoint] with interrupts disabled. @@ -932,6 +964,9 @@ static int hw_breakpoint_pending(unsigned long addr, unsigned int fsr, case ARM_ENTRY_SYNC_WATCHPOINT: watchpoint_handler(addr, fsr, regs); break; + case ARM_ENTRY_CFI_BREAKPOINT: + hw_breakpoint_cfi_handler(regs); + break; default: ret = 1; /* Unhandled fault. */ } -- cgit v1.2.3 From 1a4fec49efe5273eb2fcf575175a117745f76f97 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Tue, 23 Apr 2024 08:54:45 +0100 Subject: ARM: 9392/2: Support CLANG CFI Support Control Flow Integrity (CFI) when compiling with CLANG. In the as-of-writing LLVM CLANG implementation (v17) the 32-bit ARM platform is supported by the generic CFI implementation, which isn't tailored specifically for ARM32 but works well enough to enable the feature. Tested-by: Kees Cook Reviewed-by: Sami Tolvanen Signed-off-by: Linus Walleij Signed-off-by: Russell King (Oracle) --- arch/arm/Kconfig | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/arm') diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index b14aed3a17ab..df7bd07ad0d4 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -35,6 +35,7 @@ config ARM select ARCH_OPTIONAL_KERNEL_RWX if ARCH_HAS_STRICT_KERNEL_RWX select ARCH_OPTIONAL_KERNEL_RWX_DEFAULT if CPU_V7 select ARCH_SUPPORTS_ATOMIC_RMW + select ARCH_SUPPORTS_CFI_CLANG select ARCH_SUPPORTS_HUGETLBFS if ARM_LPAE select ARCH_SUPPORTS_PER_VMA_LOCK select ARCH_USE_BUILTIN_BSWAP -- cgit v1.2.3 From 7b749aad1faa5bcb23b45b7126f677ab17324c40 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Thu, 2 May 2024 08:13:24 +0100 Subject: ARM: 9393/1: mm: Use conditionals for CFI branches Commit 9385/2 introduced a few branches inside function prototypes when using CFI in order to deal with the situation where CFI inserts a few bytes of function information in front of the symbol. This is not good for older CPUs where every cycle counts. Commit 9386/2 alleviated the situation a bit by using aliases for the cache functions with identical signatures. This leaves the coherent cache flush functions *_coherent_kern_range() with these branches to the corresponing *_coherent_user_range() around, since their return type differ and they therefore cannot be aliased. Solve this by a simple ifdef so at least we can use fallthroughs when compiling without CFI enabled. Link: https://lore.kernel.org/linux-arm-kernel/Zi+e9M%2Ff5b%2FSto9H@shell.armlinux.org.uk/ Suggested-by: Ard Biesheuvel Signed-off-by: Linus Walleij Signed-off-by: Russell King (Oracle) --- arch/arm/mm/cache-fa.S | 2 ++ arch/arm/mm/cache-v4.S | 2 ++ arch/arm/mm/cache-v4wb.S | 4 ++++ arch/arm/mm/cache-v4wt.S | 2 ++ arch/arm/mm/cache-v6.S | 2 ++ arch/arm/mm/cache-v7.S | 2 ++ arch/arm/mm/cache-v7m.S | 2 ++ arch/arm/mm/proc-arm1020.S | 2 ++ arch/arm/mm/proc-arm1020e.S | 2 ++ arch/arm/mm/proc-arm1022.S | 2 ++ arch/arm/mm/proc-arm1026.S | 2 ++ arch/arm/mm/proc-arm920.S | 2 ++ arch/arm/mm/proc-arm922.S | 2 ++ arch/arm/mm/proc-arm925.S | 2 ++ arch/arm/mm/proc-arm926.S | 2 ++ arch/arm/mm/proc-arm940.S | 2 ++ arch/arm/mm/proc-arm946.S | 2 ++ arch/arm/mm/proc-feroceon.S | 2 ++ arch/arm/mm/proc-mohawk.S | 2 ++ arch/arm/mm/proc-xsc3.S | 2 ++ 20 files changed, 42 insertions(+) (limited to 'arch/arm') diff --git a/arch/arm/mm/cache-fa.S b/arch/arm/mm/cache-fa.S index db454033b76f..4a3668b52a2d 100644 --- a/arch/arm/mm/cache-fa.S +++ b/arch/arm/mm/cache-fa.S @@ -112,7 +112,9 @@ SYM_FUNC_END(fa_flush_user_cache_range) * - end - virtual end address */ SYM_TYPED_FUNC_START(fa_coherent_kern_range) +#ifdef CONFIG_CFI_CLANG /* Fallthrough if !CFI */ b fa_coherent_user_range +#endif SYM_FUNC_END(fa_coherent_kern_range) /* diff --git a/arch/arm/mm/cache-v4.S b/arch/arm/mm/cache-v4.S index 0df97a610026..0e94e5193dbd 100644 --- a/arch/arm/mm/cache-v4.S +++ b/arch/arm/mm/cache-v4.S @@ -104,7 +104,9 @@ SYM_FUNC_END(v4_coherent_user_range) * - size - region size */ SYM_TYPED_FUNC_START(v4_flush_kern_dcache_area) +#ifdef CONFIG_CFI_CLANG /* Fallthrough if !CFI */ b v4_dma_flush_range +#endif SYM_FUNC_END(v4_flush_kern_dcache_area) /* diff --git a/arch/arm/mm/cache-v4wb.S b/arch/arm/mm/cache-v4wb.S index 1912f559968c..ce55a2eef5da 100644 --- a/arch/arm/mm/cache-v4wb.S +++ b/arch/arm/mm/cache-v4wb.S @@ -136,7 +136,9 @@ SYM_FUNC_END(v4wb_flush_user_cache_range) */ SYM_TYPED_FUNC_START(v4wb_flush_kern_dcache_area) add r1, r0, r1 +#ifdef CONFIG_CFI_CLANG /* Fallthrough if !CFI */ b v4wb_coherent_user_range +#endif SYM_FUNC_END(v4wb_flush_kern_dcache_area) /* @@ -150,7 +152,9 @@ SYM_FUNC_END(v4wb_flush_kern_dcache_area) * - end - virtual end address */ SYM_TYPED_FUNC_START(v4wb_coherent_kern_range) +#ifdef CONFIG_CFI_CLANG /* Fallthrough if !CFI */ b v4wb_coherent_user_range +#endif SYM_FUNC_END(v4wb_coherent_kern_range) /* diff --git a/arch/arm/mm/cache-v4wt.S b/arch/arm/mm/cache-v4wt.S index 43b4275ab680..a97dc267b3b0 100644 --- a/arch/arm/mm/cache-v4wt.S +++ b/arch/arm/mm/cache-v4wt.S @@ -108,7 +108,9 @@ SYM_FUNC_END(v4wt_flush_user_cache_range) * - end - virtual end address */ SYM_TYPED_FUNC_START(v4wt_coherent_kern_range) +#ifdef CONFIG_CFI_CLANG /* Fallthrough if !CFI */ b v4wt_coherent_user_range +#endif SYM_FUNC_END(v4wt_coherent_kern_range) /* diff --git a/arch/arm/mm/cache-v6.S b/arch/arm/mm/cache-v6.S index 86affd60d6d4..9f415476e218 100644 --- a/arch/arm/mm/cache-v6.S +++ b/arch/arm/mm/cache-v6.S @@ -117,7 +117,9 @@ SYM_FUNC_END(v6_flush_user_cache_range) * - the Icache does not read data from the write buffer */ SYM_TYPED_FUNC_START(v6_coherent_kern_range) +#ifdef CONFIG_CFI_CLANG /* Fallthrough if !CFI */ b v6_coherent_user_range +#endif SYM_FUNC_END(v6_coherent_kern_range) /* diff --git a/arch/arm/mm/cache-v7.S b/arch/arm/mm/cache-v7.S index 170b9ac72331..201ca05436fa 100644 --- a/arch/arm/mm/cache-v7.S +++ b/arch/arm/mm/cache-v7.S @@ -261,7 +261,9 @@ SYM_FUNC_END(v7_flush_user_cache_range) * - the Icache does not read data from the write buffer */ SYM_TYPED_FUNC_START(v7_coherent_kern_range) +#ifdef CONFIG_CFI_CLANG /* Fallthrough if !CFI */ b v7_coherent_user_range +#endif SYM_FUNC_END(v7_coherent_kern_range) /* diff --git a/arch/arm/mm/cache-v7m.S b/arch/arm/mm/cache-v7m.S index 4e670697eabc..14d719eba729 100644 --- a/arch/arm/mm/cache-v7m.S +++ b/arch/arm/mm/cache-v7m.S @@ -286,7 +286,9 @@ SYM_FUNC_END(v7m_flush_user_cache_range) * - the Icache does not read data from the write buffer */ SYM_TYPED_FUNC_START(v7m_coherent_kern_range) +#ifdef CONFIG_CFI_CLANG /* Fallthrough if !CFI */ b v7m_coherent_user_range +#endif SYM_FUNC_END(v7m_coherent_kern_range) /* diff --git a/arch/arm/mm/proc-arm1020.S b/arch/arm/mm/proc-arm1020.S index ddda04929dae..d0ce3414a13e 100644 --- a/arch/arm/mm/proc-arm1020.S +++ b/arch/arm/mm/proc-arm1020.S @@ -203,7 +203,9 @@ SYM_FUNC_END(arm1020_flush_user_cache_range) * - end - virtual end address */ SYM_TYPED_FUNC_START(arm1020_coherent_kern_range) +#ifdef CONFIG_CFI_CLANG /* Fallthrough if !CFI */ b arm1020_coherent_user_range +#endif SYM_FUNC_END(arm1020_coherent_kern_range) /* diff --git a/arch/arm/mm/proc-arm1020e.S b/arch/arm/mm/proc-arm1020e.S index 60169f4ca391..64f031bf6eff 100644 --- a/arch/arm/mm/proc-arm1020e.S +++ b/arch/arm/mm/proc-arm1020e.S @@ -200,7 +200,9 @@ SYM_FUNC_END(arm1020e_flush_user_cache_range) * - end - virtual end address */ SYM_TYPED_FUNC_START(arm1020e_coherent_kern_range) +#ifdef CONFIG_CFI_CLANG /* Fallthrough if !CFI */ b arm1020e_coherent_user_range +#endif SYM_FUNC_END(arm1020e_coherent_kern_range) /* diff --git a/arch/arm/mm/proc-arm1022.S b/arch/arm/mm/proc-arm1022.S index 30b0e4d05a05..42ed5ed07252 100644 --- a/arch/arm/mm/proc-arm1022.S +++ b/arch/arm/mm/proc-arm1022.S @@ -199,7 +199,9 @@ SYM_FUNC_END(arm1022_flush_user_cache_range) * - end - virtual end address */ SYM_TYPED_FUNC_START(arm1022_coherent_kern_range) +#ifdef CONFIG_CFI_CLANG /* Fallthrough if !CFI */ b arm1022_coherent_user_range +#endif SYM_FUNC_END(arm1022_coherent_kern_range) /* diff --git a/arch/arm/mm/proc-arm1026.S b/arch/arm/mm/proc-arm1026.S index ae06262ca779..b3ae62cd553a 100644 --- a/arch/arm/mm/proc-arm1026.S +++ b/arch/arm/mm/proc-arm1026.S @@ -194,7 +194,9 @@ SYM_FUNC_END(arm1026_flush_user_cache_range) * - end - virtual end address */ SYM_TYPED_FUNC_START(arm1026_coherent_kern_range) +#ifdef CONFIG_CFI_CLANG /* Fallthrough if !CFI */ b arm1026_coherent_user_range +#endif SYM_FUNC_END(arm1026_coherent_kern_range) /* diff --git a/arch/arm/mm/proc-arm920.S b/arch/arm/mm/proc-arm920.S index e47411243b08..a30df54ad5fa 100644 --- a/arch/arm/mm/proc-arm920.S +++ b/arch/arm/mm/proc-arm920.S @@ -180,7 +180,9 @@ SYM_FUNC_END(arm920_flush_user_cache_range) * - end - virtual end address */ SYM_TYPED_FUNC_START(arm920_coherent_kern_range) +#ifdef CONFIG_CFI_CLANG /* Fallthrough if !CFI */ b arm920_coherent_user_range +#endif SYM_FUNC_END(arm920_coherent_kern_range) /* diff --git a/arch/arm/mm/proc-arm922.S b/arch/arm/mm/proc-arm922.S index 092f8b7656a7..aac4e048100d 100644 --- a/arch/arm/mm/proc-arm922.S +++ b/arch/arm/mm/proc-arm922.S @@ -182,7 +182,9 @@ SYM_FUNC_END(arm922_flush_user_cache_range) * - end - virtual end address */ SYM_TYPED_FUNC_START(arm922_coherent_kern_range) +#ifdef CONFIG_CFI_CLANG /* Fallthrough if !CFI */ b arm922_coherent_user_range +#endif SYM_FUNC_END(arm922_coherent_kern_range) /* diff --git a/arch/arm/mm/proc-arm925.S b/arch/arm/mm/proc-arm925.S index a06039a3b2a8..035941faeb2e 100644 --- a/arch/arm/mm/proc-arm925.S +++ b/arch/arm/mm/proc-arm925.S @@ -229,7 +229,9 @@ SYM_FUNC_END(arm925_flush_user_cache_range) * - end - virtual end address */ SYM_TYPED_FUNC_START(arm925_coherent_kern_range) +#ifdef CONFIG_CFI_CLANG /* Fallthrough if !CFI */ b arm925_coherent_user_range +#endif SYM_FUNC_END(arm925_coherent_kern_range) /* diff --git a/arch/arm/mm/proc-arm926.S b/arch/arm/mm/proc-arm926.S index 2c8b93d446a9..6f43d6af2d9a 100644 --- a/arch/arm/mm/proc-arm926.S +++ b/arch/arm/mm/proc-arm926.S @@ -192,7 +192,9 @@ SYM_FUNC_END(arm926_flush_user_cache_range) * - end - virtual end address */ SYM_TYPED_FUNC_START(arm926_coherent_kern_range) +#ifdef CONFIG_CFI_CLANG /* Fallthrough if !CFI */ b arm926_coherent_user_range +#endif SYM_FUNC_END(arm926_coherent_kern_range) /* diff --git a/arch/arm/mm/proc-arm940.S b/arch/arm/mm/proc-arm940.S index fbe168213ec1..0d30bb25c42b 100644 --- a/arch/arm/mm/proc-arm940.S +++ b/arch/arm/mm/proc-arm940.S @@ -153,7 +153,9 @@ SYM_FUNC_END(arm940_coherent_kern_range) * - end - virtual end address */ SYM_TYPED_FUNC_START(arm940_coherent_user_range) +#ifdef CONFIG_CFI_CLANG /* Fallthrough if !CFI */ b arm940_flush_kern_dcache_area +#endif SYM_FUNC_END(arm940_coherent_user_range) /* diff --git a/arch/arm/mm/proc-arm946.S b/arch/arm/mm/proc-arm946.S index 4772b46064e6..27750ace2ced 100644 --- a/arch/arm/mm/proc-arm946.S +++ b/arch/arm/mm/proc-arm946.S @@ -173,7 +173,9 @@ SYM_FUNC_END(arm946_flush_user_cache_range) * - end - virtual end address */ SYM_TYPED_FUNC_START(arm946_coherent_kern_range) +#ifdef CONFIG_CFI_CLANG /* Fallthrough if !CFI */ b arm946_coherent_user_range +#endif SYM_FUNC_END(arm946_coherent_kern_range) /* diff --git a/arch/arm/mm/proc-feroceon.S b/arch/arm/mm/proc-feroceon.S index 8519ff60e512..f67b2ffac854 100644 --- a/arch/arm/mm/proc-feroceon.S +++ b/arch/arm/mm/proc-feroceon.S @@ -208,7 +208,9 @@ SYM_FUNC_END(feroceon_flush_user_cache_range) */ .align 5 SYM_TYPED_FUNC_START(feroceon_coherent_kern_range) +#ifdef CONFIG_CFI_CLANG /* Fallthrough if !CFI */ b feroceon_coherent_user_range +#endif SYM_FUNC_END(feroceon_coherent_kern_range) /* diff --git a/arch/arm/mm/proc-mohawk.S b/arch/arm/mm/proc-mohawk.S index 091f6c6719a8..8e9f38da863a 100644 --- a/arch/arm/mm/proc-mohawk.S +++ b/arch/arm/mm/proc-mohawk.S @@ -163,7 +163,9 @@ SYM_FUNC_END(mohawk_flush_user_cache_range) * - end - virtual end address */ SYM_TYPED_FUNC_START(mohawk_coherent_kern_range) +#ifdef CONFIG_CFI_CLANG /* Fallthrough if !CFI */ b mohawk_coherent_user_range +#endif SYM_FUNC_END(mohawk_coherent_kern_range) /* diff --git a/arch/arm/mm/proc-xsc3.S b/arch/arm/mm/proc-xsc3.S index f4889911eca2..14927b380452 100644 --- a/arch/arm/mm/proc-xsc3.S +++ b/arch/arm/mm/proc-xsc3.S @@ -223,7 +223,9 @@ SYM_FUNC_END(xsc3_flush_user_cache_range) * it also trashes the mini I-cache used by JTAG debuggers. */ SYM_TYPED_FUNC_START(xsc3_coherent_kern_range) +#ifdef CONFIG_CFI_CLANG /* Fallthrough if !CFI */ b xsc3_coherent_user_range +#endif SYM_FUNC_END(xsc3_coherent_kern_range) SYM_TYPED_FUNC_START(xsc3_coherent_user_range) -- cgit v1.2.3 From eebadafc3b14d9426fa9cc3ab0da0e48367c7114 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Wed, 15 May 2024 15:03:35 +0100 Subject: ARM: 9398/1: Fix userspace enter on LPAE with CC_OPTIMIZE_FOR_SIZE=y Booting an LPAE-enabled kernel built with CONFIG_CC_OPTIMIZE_FOR_SIZE=y fails when starting userspace: Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000004 CPU: 1 PID: 1 Comm: init Tainted: G W N 6.9.0-rc1-koelsch-00004-g7af5b901e847 #1930 Hardware name: Generic R-Car Gen2 (Flattened Device Tree) Call trace: unwind_backtrace from show_stack+0x10/0x14 show_stack from dump_stack_lvl+0x78/0xa8 dump_stack_lvl from panic+0x118/0x398 panic from do_exit+0x1ec/0x938 do_exit from sys_exit_group+0x0/0x10 ---[ end Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000004 ]--- Add the missing memory clobber to cpu_set_ttbcr(), as suggested by Russell King. Force inlining of uaccess_save_and_enable(), as suggested by Ard Biesheuvel. The latter fixes booting on Koelsch. Closes: https://lore.kernel.org/r/CAMuHMdWTAJcZ9BReWNhpmsgkOzQxLNb5OhNYxzxv6D5TSh2fwQ@mail.gmail.com/ Fixes: 7af5b901e84743c6 ("ARM: 9358/2: Implement PAN for LPAE by TTBR0 page table walks disablement") Acked-by: Ard Biesheuvel Reviewed-by: Linus Walleij Tested-by: Florian Fainelli Signed-off-by: Geert Uytterhoeven Signed-off-by: Russell King (Oracle) --- arch/arm/include/asm/proc-fns.h | 2 +- arch/arm/include/asm/uaccess.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/include/asm/proc-fns.h b/arch/arm/include/asm/proc-fns.h index 9b3105a2a5e0..b4986a23d852 100644 --- a/arch/arm/include/asm/proc-fns.h +++ b/arch/arm/include/asm/proc-fns.h @@ -187,7 +187,7 @@ static inline unsigned int cpu_get_ttbcr(void) static inline void cpu_set_ttbcr(unsigned int ttbcr) { - asm("mcr p15, 0, %0, c2, c0, 2" : : "r" (ttbcr)); + asm volatile("mcr p15, 0, %0, c2, c0, 2" : : "r" (ttbcr) : "memory"); } #else /*!CONFIG_MMU */ diff --git a/arch/arm/include/asm/uaccess.h b/arch/arm/include/asm/uaccess.h index 25d21d7d6e3e..6c9c16d767cf 100644 --- a/arch/arm/include/asm/uaccess.h +++ b/arch/arm/include/asm/uaccess.h @@ -47,7 +47,7 @@ static __always_inline void uaccess_restore(unsigned int flags) #elif defined(CONFIG_CPU_TTBR0_PAN) -static inline unsigned int uaccess_save_and_enable(void) +static __always_inline unsigned int uaccess_save_and_enable(void) { unsigned int old_ttbcr = cpu_get_ttbcr(); -- cgit v1.2.3